U are confused about ever changing prices,
no pbm.
Use 185 usdt in future trade on BTC selecting isolated margin,1X leverage.Add 185 in margin too.
Now select buy long,if it goes up too much,thats peak.if it goes negative,its dip.
U shod buy other coins at dip,buy long them.
U can buy others at peak,short sell them.
This is the only way to avoid losses.Try it and thanks me a lot later.