who told you that bitcoin doesn't disappoint, bitcoin will disappoint you, that's why many people do encourage others that they should not purchase or invest on Bitcoin with everything they have, secondly, we should not use bitcoin investment as our main hustle,rather it should be our side hustle

Secondly, You can invest on Bitcoin now and tomorrow the price devalue, so we should not be looking as bitcoin price is going up everytime, and we should consider some factors of bitcoin knowing that the price is not stable, might not disappoint you base on the duration of your investment on bitcoin, some who invest short-term do experience lost and people who also invest on long-term also experienced lost, so investing in Bitcoin is of the person's risk. But it's not guaranteed that you will make profit.