The current situation of alts is weak and volume also down accumulate our suggested coins in dip i will suggest you today 4-5 dip entries. Buy partially that coins to get lower average entry. 
It is simple sense. When BTC is flying then all alts coin will start to dump. So that time you need to sold out your all alts and wait for lowest price. If you havent huge loss i think you need to sold out your all alts and hold BTC till 6900$ then you will buy USDT through BTC and again buy BTC through USDT at 6200-6250 value.