ttc newbie intro

Ttc newbie, 3rd purposeful attempt. I'm 24, athletic, was on birth control for the past 6 years, with clockwork regular cycles prior to starting the pill. One previous miscarriage 3 years ago. Started off just going off the pill, then calculating fertile window on my own, now using Glow and Ovia to compare algorithms and backing up my findings with a Walmart-brand opk. Trying not to stress or spend too much money trying to succeed early on, but I'm a perfectionist through and through. Any advice?