Congrats on your first spell, @shannon44! 
I’m sorry to hear about how this person is treating you- no one deserves to be put down like that. I hope that things improve from here and they leave you in peace 
Like Devenne said, the answer to this is going to depend on the person and their magickal ethics (more information about magickal ethics and building your own here) - in other words, every practitioner sets their own rules around what it “right” or “wrong” within their practice.
I try not to cast (or take any action- mudane or magickal!) when I’m all fired up and feeling wronged, because I know I might do something I would regret later. Casting spells that would bring harm to others as goes against my own magickal ethics and beliefs around karma (but there are plenty of witches out there who set different lines- and that’s totally fine! To each witch their own 
)
I think it’s wonderful that you’re looking for some positive spells to bring joy to those around you- I’m happy to help with some recommendations! 
Is there something in particular that you’d like to focus on? From healing spells to general blessings, to increasing someone’s good luck, to healing Mother Nature- there are a lot of opportunities for sharing good energy with the world. Here are a few suggestions for you:
Wishing you all the best with your spellwork- blessed be, Shannon! 