Feeling feelings

I hear stuff that happened and I get emotional about it wth how do I control myself like I see some news and post on here and I want to cry. How do I get my mind right stop crying about stuff I feel all sensitive.

I had a class in highschool and I didn't understand the homework couldn't finish it and the teacher was talking to me and he told me to not sound so guilty low esteem. I'm not sure how to feel better about myself.

Like when I ask for rides to grocery I feel guilty about it like a burden. Even when I get invited to lunch I feel like I should pay but they insisted. I don't know how to get over these feelings that whatever I do is a problem. Like when I go to the park and its a narrow trail I have right of way but I stop and let people pass to not start problems and same with cashier's when they have attitude I don't tell them the truth how I feel. When I'm shopping like let's say I'm buying body wash someone comes along wants to be same row and I will move out of the way.

I notice when I go out and there are confident women and nicely dressed I usually look down but when I look up and if they look at me some gave me a look like I hate your guts or you're beneath me and I look walk away.

Even with food I will wait until I am last and serve myself whatever is left. If I go to friends they offer snacks I say I'll take whatever one you don't want instead of saying what I really want.

How do I change are there any books videos podcast blogs vlogs

If anyone ever got over this what did you do to change

Also how do you believe in yourself have more confidence esteem?

How do I not let others affect me