The best scenario is buy BTC when it was below $50. (Ideally, when it was below $1). So you have say a few thousand corns. Let's say 10k.
Then you participate in, let's say ETH, and part with half of your corns. so that's 10 million ETH.
Then you participate in a bunch of different ICOs with maybe even just 1 million ETH. And you do an average of 5x. Some go to zero. Some go 10x. Then bring it all back to ETH or BTC.
Then you HODL until ATH... maybe at 15k per BTC, 1k per ETH.
Then, it would take me a literal couple of years cashing out about $10k USD every other day, so I can spread all over the world in 10 different fiat currencies and still have more than half left over in BTC, because there are still so many things I can't buy with just BTC, and everything else has to be paid in fiat and I don't mind investing in some traditional index ETFs to let it sit for the next 10 years.
At one point in time, I had available to me about $20k USD from a bank, in the Philippines, in about 2014. I could have used it to buy all corn back then ... it was maybe $500? So about 40 corns. If that's all I HODL'd until now and even with interest, I could have sold maybe 4 corns, paid back the loan, and still have 36 corns; or invested half in the ETH ICO and gotten 40k ETH.
But none of us knew that. Still. What if ...
Even though I don't know your situation with any kind of exactness, from your way of describing matters, I get a few different impressions, and some of them are about your way of framing these matters. 1) You seem to not really recognize what distinguishes bitcoin from ethereum and other coins/projects, 2) you seem inclined to gamble in a kind of way that you are inclined to be always attempting to chase increasing returns, 3) it seems that you want to rush matters, which is kind of related to item 2 and 3) you may even have some faults in your thinking in terms of your attempting to objectively classify what is rich or not rich, versus merely honing in on your own situation, which involves attempting to live within your means - which will have an ability to create a kind of richness because you would be able to live within your means, and then only using spare money after that in order to make investments (including hopefully concentrating on bitcoin and not getting caught up with those various other projects).
Regarding your assessment that it is too late or maybe it is becoming too late to become rich from bitcoin, I don't think so. No matter what, it is going to take some time to get rich, anyhow, even if you run into fortuitous circumstances, yet if you recognize bitcoin as the place to focus your investment efforts, you probably could still get rich from it, relatively speaking because if you recognize bitcoin as your main focus asset, then you might jus concentrate on investing in bitcoin (after of course, you have all of your monthy expenses covered, including emergency funds).