You didn't vote for him. You don't need to trust him. So just decide how to handle the next 3+ years: angry, sad, defeated, indifferent, joyful, planning who you're going to vote for next. Doesn't matter really, except to you.
Now if you voted for KAMALA you do have some things to figure out. Namely, if you're going to vote for her as governor if she runs. Also if you like what the Democrats are doing in your state. Maybe you do! Hopefully they'll get that Palisades area rebuilt but who knows.
You really have bigger local issues to consider than whether or not Trump is 'fulfilling your expectations' or 'lying to you.'