You are the only one who can directly control the outcome of your life. It won’t always be easy. Everyone has a stack of obstacles in front of them. You must take accountability for your situation, and overcome these obstacles.
Focus on “getting better” at something rather than “being perfect” at something. Instead of tying our self-worth to achievement and seeing ourselves either as a success or a failure, understand that skills, capability and achievement are things we can influence with our beliefs and behaviour.