That's a good goal if you are just planning for 'money', but are you sure that altcoins you are buying are not shitcoins?
There's a lot of shitcoins nowadays, so be careful. But I also believe that there are many shitcoins are still making money $$, even they are really a big shitcoin, money still there, so it's ok. What my I want to happen is altcoins should help the Bitcoin for it's problem or even in helping the adoption of Cryptocurrency.
True, buying altcoins is risky. You're determination to become a millionaire is there and it is a good sign but make sure the alts that you are buying has a future not those alts who became nothing and don't have value at all.
When the crash came and we have been waiting for a long time I don't think we will go back to bull run once again. I believe 2017 is a golden year for us especially for those people who has held bitcoin before at that year. Just one way if we want to bull run come that is government regulated cryptocurrency, I may say that is one aspect a lot of investor come back again. Seems like, the investors cryptocurrency just will buy once government accept cryptocurrency because the past investor who has been felt a lost caused the regulations of government so as they will back when they accept it.