If you are willing to self-teach via YouTube and you have time on your side you can knock over an apartment of that she yourself within two weeks. Im a first time/amateur myself and jut finished a 2-bed apartment in two weeks. Far from a professional, my finish was still pretty good considering the lack of experience. YouTube helps to learn technique prior to painting! I did ceiling, walls, doors, architraves and even White Knight painted the kitchen laminate cabinets. All in, I was about $600 in costs. Paints, primers, brushes, tapes, roller trays etc. Highly recommend cutting in brushes as opposed to taping where possible. Saves time and gives a neat finish.