I have $ 5000. should start where. Let me know what to do with this amount, thanks

If I were you, I'd spend $4000 for Bitcoin and put them in a secure hardware wallet (Ledger Nano S only costs 70EUR, by the way). The rest $1000 is for altcoin with huge multiplier potential. My personal choice for now is WABI and BAT. WABI is currently sitting on 190 marketcap rank, defintiely undervalued given their consistent development. BAT is the same, while not severely undervalued like WABI, I think it should value more. Do your research for both coins and thank me later

I'm not a professional financial advisor. Do it with your own risk.
Small amount for altcoins investment is fine, but I wouldnt bet 4000 dollars investment on bitcoin. Rather I would trust coins like XMR and NEO to distribute the amount that you are planning to but In bitcoin. One can never say how long bitcoin will be able to hold the top position as its getting surrounded by government and news from media and social FUD.
Better to distribute 5000$ in equally in 5-7 different altcoins. In that way you will mostly be in profit and even if one coin fails, it shouldnt affect your portfolio much.