Kindly reference the following links:
Didn't pray, fast in past but now I am practicing Islam, how to make up prayers, fasts
I have missed Salah before becoming Practicing
Can I make up prayers that I missed intentionally?
Praying the salah that you missed deliberately?
How to make up the salah if you missed it due to some reason? (order of prayers)
How to make up Asr? | Sheikh Assim Al Hakeem
Making up missed days of Ramadan
Making up Fasts and Prayers missed due to Negligence fasts that one broke intentionally *
Combining intentions of missed days of Ramadan with Mondays, Thursdays, white days, Ashura, Arafah *
Should I make up the fasts that I missed during my non-practicing days?
I didn't pray in my non-practicing days Should I offer qadha or what's the right way
When can we make up missed fasts? (broke)
How to make up for missed prayers (Qaza)
Did Prophetﷺ pray Qaza (Make up missed prayer)?