Having plans on exiting altcoins at around end of june/early july.

I know timing the market is bad and all but given the mental stregnth to invest in crypto (specifically altcoins). I do have plans on exiting the altcoin market by at least toward the end of june and early july. Reasons include taking profits in green moments. Im not fully selling into fiat, i do plan converting at least 30% of ny portfolio to bitcoin (i know it will bw more expsensive or it can crash but at least its more stable). Who is in the same boat? If the crypto market starts to explode (and retail fomoing)after june, well ill bite the loss.