Do not sell your bitcoin, you will regret it. Be patient ...
My suggestion is you should keep holding on because bitcoin prices will recover soon. You will immediately restore all your losses, be patient. Because for me, selling your land to buy bitcoin is not recommended because a small investment is risky.
Physical assets are more valuable if you compared it to any digital assets. I agree you can make a good profit on bitcoin but not 100% sure. and once you sell your land again if you want to buy back means you have to pay more money. So just hold your land in future your land only give you good profit.