If you already sell your house, and asking the majority if you made the right decision by investing on those tokens that you have mentioned, we couldn't give an advice whether it would really help you or not, it will not change anything that's been done already. Our opinions about your decision on selling your house for this kind of investment will either hurt you by hearing the truth or motivates you by telling some white lies.
That is true. As we cannot undo what is done, there is no point discussing such things. Selling house when it was the only house he owned, he has definitely pushed himself far beyond limits. If the money was invested in bitcoin and bitcoin only, things could have been different. It is safe to do some research on your own before investing anywhere. If possible, he should convert all holdings to bitcoin and start trading.