I'm going to DM Lost Mines of Phandelver tomorrow for 2 friends who've never played the game before. I've never DM'd before either.

Would starting them off at level 2 be enough to compensate for the imbalance?

Should I still scale the enemies down, and keep them at level 1, or maybe do both?

Should I give them many more healing potions than what is suggested in the treasure sections?

Thanks so much for the advice.