My parents didnt particularly approve of my life choices either. At the end of the day I am considerably more successful financially and otherwise than they are. Parents may mean well but that does make them always right.
My tefilos are with you. Try saying one kapitol of tehillim a day for yourself too – it may sound silly or basic but if it is said with the proper kavana it will work wonders.
Keep talking to a mentor as that will help you have more faith in yourself, your abilities and your direction in life.
At the end of the day your parents will probably come around if they see you are serious about things that are important to you and are striving to do what you think is right.