if you don't believe in Bitcoin long term activity and Succes then i think you should not even invest in it! try stocks.
but if you think as Satoshi think

then you will get to the moon with BTC.
there is up and down in the prices of all altcoins and bitcoin so you must decide to trade or just hodl them

in my opinion if you can be a trader on these days that bitcoin price climbs with some corrections keep your portfolio with 50% BTC and 50% with altcoins that have potential to grow, check on the analysis.
Cheers.