I need advice for a personal problem please

I hesitated a lot in making this thread because stuff like this is usually seen as weak and silly. I'm not a tough person. I usually keep to myself and go mute when I'm angry, sad, uncomfortable, etc., and I'm just not a tough person. I can't handle certain situations by confronting them directly. I just can't, it's not who I am.

I recently found out a supervisor at my work presumably doesn't like me and I have no idea why. I don't talk a lot, I'm quiet, etc. I say hi to people when I come in for work and occasionally when I pass them but then I more or less focus on my work. I also find it very awkward and uncomfortable to look at or speak to people who get angry at me, shout at me, or raise their voices to me. I mean, I think it's natural. It's an uncomfortable situation to be confronted with or have somebody be angry, annoyed, etc. with you. Those feelings don't easily go away, and I'm painfully aware of that. I don't hold grudges but I know how easy it is to. I guess it's important to note that I'm a very sensitive and emotional person too. That's some context to what I'm about to explain.

So, at the moment I work at a grocery store(under a placement system of 3 months I think, from an employment agency) in the dairy section and sometimes frozen. I'm a new worker(3 weeks of 20~ hours a week), so I still don't know/remember a whole lot. Last week, we were out of the cheap popular bulk brand of unsalted butter so I asked my supervisor if we had any more of it but mentioned that we also had this other band of salted butter that got delivered that day. I think the issue here is that my question got interpreted as me asking if unsalted butter of another brand was on this brand's load and that's not what I was asking. He then proceeded to shout at me, make me feel very uncomfortable and stupid and almost make me cry. I decided to keep to myself for the rest of the shift and focus on my work because yes, I was feeling very uncomfortable and very bad about myself. A person I've known for a while(since grade 2, so about 15 years or so), that I was working on the same shift(and then the next one after that) reassured me that it's normal in this work environment and that it's fine and nothing to feel bad about since a lot of the people in the store are apparently pretty out spoken. It didn't really help, despite how nice of a guy he is. I went home feeling depressed and shitty.

Today, after literally just arriving, my supervisor for my department at a grocery store basically confronted me in front of somebody else about how I never say hi or talk to him and I can assure you that's not true(or so I personally believe, my personality may not be translating easily, I don't know). Naturally I was pretty confused and it only made the overall situation more uncomfortable and awkward for me. The fact that there was somebody there to witness it just made it really awkward and embarrassing. I tried to tell the person who witnessed it that I had no idea what it was all about and that I was confused but I feel like this was a permanent reputation scar. Today was even more awkward and uncomfortable. I actually started randomly crying a tiny bit at some point but luckily it was in the back freezer and no one noticed but... It happened and I feel terrible about it, with feelings of weakness. I don't know if in the future I will straight up star crying and be scolded or mocked for it.

I think some people will remember my last thread I made where I talked about some personal problems and feelings I'm dealing with in life right now. I truly appreciated all of the comments and help but those issues are still with me and I feel like it's something that will always affect me, for the foreseeable future. I haven't tried to get any help yet but I've been very busy and lots of stuff in life is just hitting me one after the other, I just don't know how to handle everything and find time to try and talk to someone. I'm also finding it hard to just think about seeking help but I'm still trying to think about it.

This makes me feel weird and overly-dramatic but I'm actually SCARED to go to work with the extremely uncomfortable and shitty atmosphere that I've been feeling this last week. I don't feel threatened. I sort of feel threatened but I feel threatened by everyone. Honestly, there's some personal issues at the roots of that, which I won't go into detail. I'm more scared of feelings of being rejected, feeling like shit/less than nothing, and just generally feeling like no one likes me. I also don't know if these situations are going to worsen if a manager gets involved since a supervisor and somebody who has been working there for a while will obviously be considered more important than me, a new worker. I want to keep it all to myself but I know that doesn't help the situation at all and if it worsens then I don't know what I would do.

Sorry. I had to get this off my chest and I'm sincere when I say I have no where else to go. I know threads like these usually aren't taken seriously(despite all the support I got on my last thread, I just always have an insecurity that stuff like this is never taken seriously, sorry, I truly appreciate my last thread's support) and it's usually just taken as clutter on a website like this but I really needed to talk about this. There is no where else I can go and post anonymously and not feel embarrassed or scared of being affected in real life. Thank you if read all of this. I know some people might find it exhausting to hear people whine about their problems but if you read anyways, I sincerely thank you.

EDIT: I also don't want to break any rules so I will delete the thread if this is cluttering up the forums.

(obligatory giveaway drop)[https://www.steamgifts.com/giveaway/uLgMb/tricky-towers]