Self-voting posts is fine (unless you post 10 times a day and the content is crap).

Now I’m thinking I could either stop self-voting posts or I could do a weekly giveaway of the earnings from self-voting so that all followers can still benefit from my vote being in the pool. What do you think?

Too many giveaways. Self-vote your own posts (not comments) and vote the content you appreciate. I think that is enough and if everyone actually did it, the place would be much healthier.