Congrats! I have several, and they are pretty forgiving. Don't let it dry out too much, but don't let it stay soaking wet. Full sun here, seems to burn the leaves, mine prefer morning sun and some shade in the afternoon. Even after repotting, mine started blooming a couple weeks later. Only had one actual cherry this year though. If the branches get too long, they will lose leaves close to the trunk. I prune back to a couple sets of leaves, and they back bud nicely.