It is not complicated at all. Just read The Creed of Imam Tahawi and believe it. If you don't understand a point, then ask a scholar of Aqeedah. Read Nur al Idah for the 5 pillars. If you don't understand something, then ask a scholar of Fiqh. Read about the fiqh of any other activity that you engage in, and try your best to obey it. Read about the inward qualities that you shouldn't have and get rid of them. If you can't, then ask a scholar of Tasawwuf how to do it. If you want to be a scholar in the sciences of Islam, then welcome to the world of complexity