it feels wrong to be on the same pay and as some of them With greatest respect, you are almost discriminating against yourself. You got the job, on the salary you are on, don"t sell yourself short (I am quite passionate about this). I would say to a friend never mind what other people get paid (and I would say the same to someone feeling disgruntled that other people get paid more, salary resentment is not a good attitude to cultivate, I say that from experience having felt this way for a while before). Maybe you might think (in a more positive mood) gosh I'm lucky, I got this opportunity when there are other people who have degrees etc. Why shouldn't you be lucky? God knows there are enough twists and turns in life. Saying all that I do get it, its like Imposter Syndrome. I suffer/suffered with this a lot. It was only when I got to a position of more responsibility, through hard work (and a little bit of being lucky with opportunities) and felt more anxious that I read about Imposter Syndrome and the fact that it never goes away! In fact it gets worse the more successful someone becomes! I sometimes think I don't deserve to get paid what I do now because of covid19 and sometimes want to run away from it all but have kind of made my peace that I can only do the best I can do, as long as you are trying, making the effort, that is what counts. When you are bored and tired and don't want to do it anymore in your heart, then its time to move on.
The only advice I can give is to watch/observe/analyse successful people. What is it they have/do that seems to make them successful? I have learned a bit from doing this. Also if there are areas in your job that you genuinely find harder than other people seem to, or know that you don't know how to do, just lay it all out and ask yourself what areas am I weaker in here, why does it take me longer to do X, what would make it easier, do I need to know more about Y, do I need someone to talk through with me how to do Z, or how they would approach it so I can learn. Once you start doing this, the weight lifts and it feels less like 'it's me, there is something wrong with me'. I know as I have been there, for a long time. As I said before the jigsaw piece for me was accepting that I am neurodiverse. I totally get that frustrated pent up feeling, I remember having quite an intense meltdown quite early on in my job as to why it took me so long to do things. My thoughts were telling me there is something wrong with me, my feelings were telling me this is bad, my conscience was finding it hard to reconcile between the unfairness (why can't I do it), not wanting to accept that maybe I just don't have it, not wanting to admit it for fear of being 'found out'. The honest truth is I don't actually have it, that innate ability to turn a piece of work around super quick, super organised, amidst the chaos of a busy day, I have to work really hard at it.
It is hard when people say no you really have this as it puts on more pressure! Also I imagine the parent dynamic (parents always want to help, mean well etc. right) when trying to talk about work feels a bit hard. Are there are any external work networks you can join up with? Colleagues you can confide in? Totally random but something like Toast Masters (been meaning to do this) is great for confidence.
The other thing, which I totally need to do, I read about is if you have an event that has stressed you out, do a physical activity that matches the intensity of the emotion to dissipate some of the feeling, then its easier to move on. Slightly upset = have a bath. Feeling overwhelmed = have a walk. Etc. Its not easy with lockdown. Making time for you where you can.
Ps I think caring what people think is a good thing if you can refine it and hone it/direct it so its caring about the important things (work wise I mean) - still learning.