Here you want to manage two works along with each other , here my suggestion for you is that  take study and analysis in every type of the work of the cryptocurrency market and we should not remain limited to particular work because a particular work can't Result into profit for long term .
First suggestion for you is that keep himself away from ICOs as much as possible you can , because in these days most of the ICOs project are just enter in the cryptocurrency market to steal the money that we have in our pocket , they don't understand and think that with which hard work we made that small amount of money to invest .
And at another side do Investment in altcoins as a trading job , but be careful, don't go with any type of the hype , don't Invest in any coin at pump price and also don't buy any coin blindly by third-party suggestion , make analysis yourself that whmuth which coin you will go and with which not .
So take descion better at better timing , otherwise this is that field where you can put bulk amount of money as much as you want , and can loss much also .