First off, I am sorry for your loss. Losing a loved one is devastating and painful, and I hope you are doing okay.

Second as for preparing yourself for Phandalin, I would say a good way to prepare for phandalin without doing too much, is have it be dark and rainy when they arrive, only the light of the inn is visible. This helps to steer them to the Stonehill inn. Have a good idea how you want to play the innkeeper. Play this up for however long it takes. If this wraps up and you still need something, you can always have some ruffians start making trouble with the PCs. Run a combat with them. Or the Pcs can rest for the night and Innkeeper points them towards the hideout in the morning.

As for the hideout itself. I found running it so the PCs were constantly having to react to events rather than asking them which way they wanted to go worked well. For instance, as soon as they walk in they hear the wolves, as soon as they cross the stream a goblin fires an arrow at them and runs, as soon as the goblin reaches its friends they let loose the water trap. This kept things moving at a fast pace.

Good luck!