We all have problems in our lives, some problems are bigger than others every problem has a solution, the only think is needed is the attitude.
In my personal opinion I think that the self esteem is important for everyone and its 100% true that every person can react and accomplish what they want, it is not easy to work on it but each day it would improve until you feel better without stress.
Being nervous its common and more when you have this kind of problems, I’m sure you can fix your problems.