Keep in mind that you can usually get out of the lease if you really need to (although I seriously doubt you will).
Note that I’m not saying you’ll need to screw your landlord to do this, but that most leases provide for a way for you to get out if you need to. The only thing to keep in mind is that you’re on the hook until they find a new tenant, so it will likely cost you something.
Procrastinating is something you generally don’t want to do. Unless, that is, you’re thinking of buying a house right now. I’m *guessing* you already know that…