For starters, seeing as you are not doing your own research and probably not earning maximum profits, you could start with simple mining calculators like:
1. whattomine.com
2. cryptunint.com
3. nicehash.com/profit-calculator
As you learn more about mining, you will learn how to use google, search these forums, and read news to find out what is most profitable.
these are the basics, learn from these
time goes by, you may want to dig deeper and deeper and would want to be ahead of other miners
dont stop simulate thats my take