How can I stop doubting myself ?

Work on your self confidence. Some great ways to do this are through self hypnosis and CBT with a trained therapist.

You should tell yourself that you are great in whatever it is you are doubting. I personally struggle with my self image so when doing my makeup I will pick out things that I think I've done well such as my eyeliner or lipstick, then when I'm dressed I find things in my outfit that accentuate my body or make me look nice. This is so, so helpful and I always feel better about going out even if it is only to the shops.

Don't compare yourself to others. Read inspiring books. John Green does a great job boosting my self-confidence.

Just start thinking on the bright-side start giving yourself little pep-talks about how confident you are, tell yourself "I CAN DO THIS"tell yourself your not afraid to do this task tell yourself that you know that you can do this! tell yourself that doubting yourself dosen't make since because you are too confident to doubt yourself! XOXO STAY CONFIDENT EVERYONE PS- YOUR BEAUTIFUL AND SMART

By asking yourself questions to challenge your negative way of doubting yourself and realising that whatever you've been doubting yourself about isn't actually all that valid and letting yourself go by believing in yourself. Because by believing you achieve more

By start doing something you love doing. and you will start getting good at it. and when you are good at something, it gives you a sense of self confidence that not many things can out there. that will help you greatly in overcoming self-doubt.

By feeling more confident about yourself. Justify your actions in your head, that will help you to stop doubting your own self.

Maybe try to count the instances when you were right and why you thought you were right. Often, our intuition is the best thing, and second-guessing only fucks things up.

Start self-appreciating. Tell yourself you did a "good job" every time you do it. Pat yourself on the back. Gradually, you'll stop doubting yourself as much.

Oo tough question! What I think I can do (and should be doing every day) is recognize the uniqueness that is me and that I am my biggest cheerleader. If I won't cheer for myself, who will? *definitely my mom will, but I need to cheer myself on too :)