Congrats on the new guitar. Basically what u want to do is change one string at a time. Start with the high E string. After the new string is put on. Do some hard bends, then tune, then repeat the bends, then tune till its close. Then move onto the the B string and do the same thing. After the B string is tuned, tune the E string again. Repeat this process up to the low E string. After all strings are tuned, leave it unlocked overnight. The next day, retune and lock. I hope this made sense for you and helps.