Real Estate Invesments

So i sold out of my apartment reit with a 55% gain and moved on to real estate private placement. im hoping to double my money in 4.5 years.
but there is another investment thats been gaining traction silently. made up virtual real estate via decentraland. anyways so funny. you buy land there with their own cypto coin mana. a 10k ivnestment in the virtual currency mana alone, would be worth 175k ytd. not really sure how much the land has appreciated in terms of mana. but definitely in dollar amounts it at least 5x this year. meanining that the currency has gained more value than the actual good it is used for. silly silly.