Don't look at the 15 or 5 minute chart and buy/sell based on them. Small moves in a time frame may look like a big move, but in the bigger picture it doesn't change anything.

The best way to buy during a bull market is when the price drops to a high key level in the time frame or when you see a big, sharp drop in $BTC and Altcoins.

The rapid decline occurs because of traders liquidating and hunting for stoplosses, which is what market makers want to do with every move down. They buy out long positions with high leverage and retain losses to gain greater liquidity.

This will ensure quick regeneration and better RR.

If you don't see either of these two, sit back and wait for it.