My pinky is also smaller than a normal pinky should be, so I've got more problems with it
I also got a squier strat, which has a quite fat neck, and with my hand that is not really big plus my pinky is smaller than normal, I usualy get problems reaching to certain points of the guitar.
But I've been doing exercices and stuff since I started playing, so I haven't got any problems doing licks or riffs using my pinky, but man, at the begining it was quite hard using it
My advice is to practice some Paul Gilbert licks (that helped me alot making my pinky stronger), some tapping using your pinky (the tapping part in Eruption, by Van Halen is a good exercice too) and other exercices where you use your pinky, 'cause it's best using it, for some big stretches for example.
Good luck dude, and don't forget to practice!
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