I don't know if I will actually be successful one day if I invest in Bitcoin. I continued to invest in Bitcoin for many years but did not get any good results then everything was in vain. If we can invest correctly then we can make a profit then we should invest in Bitcoin and hold Bitcoin.
Were you accumulating bitcoin and holding or were you merely buying and selling with little profits, more like gambling with it? Perhaps if you were holding the bitcoin you claimed you were investing into and not trading it, you would be financially better off by now. I take it that you were among those who made mistakes by taking quick profits when you should be stacking your bitcoin for a long term ride which explains why you were unsuccessful after many years. You can still start afresh your journey with good investment practices and a long term holding plan, you can still have a chance at some level of success in the future.