Listen: You are 20 years old. That means you’re an adult. You have to learn to spread your own wings and fly. Your father won’t be around forever to nanny you and fix your problems. If you need daddy’s approval at this age, you’ll never be independent. The situation is unhealthy and unfruitful. You are more focused on him than on your trading. Your progress will be hampered by this.
Either you quit or get a demo account he doesn’t know about and when you’ve tested your system and it performs well, open a micro account and grow it. Make sure you use your own funds.
It doesn’t sound like your father doesn’t want you to succeed, but he’s trying to protect his investment. You are using his money. Use your own money and explain to him that the current system is having a negative psycholocical effect on you and the stress is causing you to lose your focus. If he kept preventing you from from falling as a baby, you would not be able to walk today. You need to learn the ropes on your own.