I was wondering if you could give me a list of two things:

1. Things that I can do to purify my blackened heart

2. Things that I can do that will prevent sins.

1a, Repent sincerely by pledging Allah not to indulge into any sin
1b, Increase the saying of “ Astagfirullaha wa Atubu elayhi” daily thereby pondering in its meanings
1c,Treat People the way you want to be treated
1d, Establish your daily compulsory prayers and other religious obligations based on your capability

2.a, Always be in the company of those who remind you of your religious obligations as well as Allah’s boundaries
2b, Self Audit or judgment: try auditing yourself now and then when it comes to your religious obligations. Allah will assist and be with you