It is a big risk to go all in.
How much you have to invest is not really important for that decision, you should always diversify a bit even if you start with $50.
I suggest you to split in 3, for something a bit safe $200 in BTC then $150 in 2 others projects.
or you can try something like this :
$200 in BTC
$150 in STRAT
$75 in an other project
$75 in an other project
Yes. It's really risky, being an investor is already risky plus the nature of the project here where the community make an investment. Some are scam and the others did not succeed. So this suggestion is the best, wise and very careful that the chance for making profit is big.