Bismillah al Rahman al Raheem, wa alaikum assalam.
I am often asked, Allah has brought me back to Islam I want to start on the spiritual path but my past is filled with evil, what can I do:
You committed sins over a period of time so you need to purify yourself through your spiritual cycles over time, Allah talks about this in surah al Shams (91) which I have written a tafsir to.
Take a copy of the Quran and begin writing it by hand until you are finished, don’t worry how long it takes but do something every day, you will find the baraka from that habit will eat away whatever is following you from your past.
When you are done, start again, make this a small routine everyday insha Allah.
Shaykh Rami Al Rifai.