I want you to remember these few things:
1. You are strong. You have worked hard to get to where you are. Do not belittle your own hard work.
2. You know how to think logically. The logical part of you is (annoyingly) embedded deep within your psyche. When you get the tendency to react in an illogical way, take a moment. And do the right thing.
3. Don't think too much. Just do it. Not for others, but for yourself.
4. If you make a mistake, fix it. If you should've done better, work harder in the future. If your best is not enough for others, just let it be.
5. Things that are out of your control, are out of your control. Don't waste your emotions on them.
6. Be more careful of the things that you let affect you.
7. Remember what you will always have - the love of a supportive family. Since you have that, you already have everything.
Don't stress out too much, okay?