If you're a real newbie
I'd get my draw length measured. Just go to a retail store with bows, look, handle, and ask the clerk for a draw length measurement.
I'd go to the internet site, Hunter's Friend, that lists many makes of compound bows, by draw length, retail price and field ready price.
Unlike normal retail prices, the retail price for the bow is like getting the price of a new vehicle, without the additional cost and price of the tires and the steering wheel. On Hunter's friend they list the "retail price" and the price for some of the field ready, or shootable, bows.
A lot of bows and a lot of different prices.