Yes! Accurately tracking calories is a BITCH and a FUCKING CHORE but so necessary!

Op, start using myfitnesspal and measuring your foods. Use the "create a recipe" function for when you make something that has multiple servings.

It helps if you get into meal prep.

In my experience, online TDEE calculators drastically underestimated my TDEE which led to months of wondering why the FUCK I wasn't gaining weight despite all my efforts. Only when I started using the calorie target generated by this this did I start seeing results https://www.reddit.com/r/nSuns/comments/6lv33j/faq_about_tdee_30/ but be aware that you need 3-4 weeks of ACCURATE data to get an accurate result.