Bj tips

So my boyfriend wants me to give him head more I’ve never gave head before only once with him I was doing it but he stopped me cause he said his head was to ticklish and even asked be to suck his balls but I told him no cause this was my first time (Also I ain’t wanna do that seems squishy and idk ) even giving head but I wanna try it again but I feel like idk what I’m doing