Releasing negativity and changing my life

My story might not be the usual.

This is about spirituality and learning witchcraft for myself.

My sweet boyfriend died 6 months ago suddenly at a young age. We were on and off for 10 years.

In the times we were off, he got married and got her pregnant. After they divorced he wanted to be back with me. Messy situation but our love was one of a kind and it hurts that now he is gone.

His ex was goldigger and took all his assets, leaving nothing to his parents, because legally their daughter gets everything(including huge amounts of money,apartment,cars). He did not leave a will as he was only 34 and died suddenly. Never wanted his ex to get anything more than apartment for daughter. When he was alive and she saw that I am taking care of him and his addictions, she said "I hope he dies so I can get 100k money"

Anyways its not my business and I want to let this all go, because he was all I cared and loved.

What I am doing is therapy, rehab for depression and using AD meds.

If anytime I get information about that goldigger it boils my blood, because I know he didn't want her to get no more than apartment for daughter.

Anyways.

I am interested in spiritual world and just keeping myself safe. So my mind is more clear and my energy is getting better.

I believe in karma so I try to live honestly and detach myself from bad people.

Could you recommend some spiritual practicies, rituals, hobbies or activities to strengthen my energy and cleanse my envoirnment to attract better things in life.

And keep away from bad people, maybe some good witch practices.

My main bother is that I want to let go of what I cannot control and understand myself better.

I believe bad and good karma.