Now is the perfect time to practice Accy! Get on youtube, select your favourite clip from GCN, Park Tool or whoever, and enjoy an hour of peace perfecting your technique.
Skinny tyres aren't any more difficult, the key is just to get the tube to seat right so It doesn't pinch. Make sure it has just enough air in to give it a little structure and then when the tyre's fitted (but before inflation) just hold it between thumb and finger, and wobble the tyre sideways. Do that right around the wheel and it'll be seated.