>>513995478 (OP)
believing is just thinking, thinking takes place in your mind.
believing in yourself is just thinking inside of your mind, which takes place all of the time.
so you've already won
>>513995478 (OP)
I will believe in you
You just simply have to get more people to support you
If you don't have inherent confidence and ego then rely on others
>>513995478 (OP)
Look yourself in the eyes in the mirror, say "I believe you" and give yourself a high-five every day in the morning when you're getting ready for the day. It sounds corny, but you'll start feeling better about yourself as a person.
P.S. You need to start acting on it, too.