It could be a long process, so make sure you find an agent that you get along with and that will act in your best interest.
Ask your agent for a trustable and reputable lender. Click here for a great option.
You can start house hunting once you have an idea of the price range you're able and willing to pay for the house.
Once you know the house that you want buy, put an offer on it and cross your fingers for the seller to take it.
Congratulations, the seller has accepted your offer!