If you truly believe investing, and especially investing in real estate, is immoral, then you shouldn’t do it, the same way you shouldn’t eat pork if you keep kosher or halal.
Anything else, especially “it feels more like buying back my own lost value” is such a gigantic cope that I’ve seen pictures of it taken from the ISS.
Either accept that your beliefs are incorrect, and participate in the market like a normal person, or stick to your beliefs when it’s inconvenient too.
This behaviour is morally no better than that of megachurch pastors who preach the immorality of gay sex and get caught paying men to fuck them in the ass.