If you want safe trade.
1. You must have know roadmap from their company.
2. You must have skill technical analisys for learn moving candle.
3. Must have skill fundamental analisys to know developing a crypto.
4. Use max 30% from your asset to trade altcoin and 70% or 50% at btc.
5. If moving market down.. Please dont panic.. Wait until bouncing and buy again to cover it.
6. If accord you it was advantage sell all.

I think that way can help to get profit.. And be patient trader.