Created a model and kept impoving it until it became good

So i'm trader that has 5 years of experience in the market for the first 2 years the model that i developped was good but it had a 50% win rate but was still not good enough for a payout so i in the last 3 years i took the model and reworked it and now it performe really good, it went from 50% to 80% if i respect all the rules in my model which i struggle to respect them it can cost me quite a lot but i am debating to build an algorithme and let it trade the model but i will keep trading it and see if there is more to improve on it.