Self pleasure

So I just ordered my first dildo.its a beginner one. I've masturbated before but only with my clitoris I've never inserted fingers and I've been single all my life so far so haven't had any one down on me or penetrate me.any one have any tips.will I have an amazing time with it off the bat or will it take time for my body to adjust to it? Any tips to help me be more comfortable first time using it and such