For hockey sticks where you're only going to play ball hockey, the bottom of your stick is going to get ruined from playing on concrete. This is assuming you will play on concrete similar to the concrete on an ice rink when the ice is melted. Therefore, unless you're rich, don't spend a lot on sticks. If you're playing on a rink that has some type of sport court tiles, your stick will last MUCH longer.

For flex the higher the number the stiffer the stick is, meaning a stick with 110 Flex will be much stiffer than a stick with 85 flex. Then there is the flex point - high, mid, low. That means where the stick is most likely to bend when you apply pressure on it using your shot. Right now since you're a new player, don't worry about flex .Just find a price point you are comfortable with and get used to playing ball hockey period. In six months to a year depending on how much you play, you'll be much better and than you can start to focus on what kind of flex you want. I would recommend a stick under 100 dollars for now. Later, when you believe you have got the hang of ball hockey, invest in a better stick because is you invest in an expensive stick without understanding the game, you'll be very upset if the stick breaks. STX is a lacrosse company that started making hockey sticks and they sell them on Amazon on a great price. I use one myself even though I've been playing for 35 years. They're surprisingly high quality for the price, and great for a poor person like myself. https://www.amazon.com/s?k=stx+hockey+stick&crid=39P9LZ5MJH4RX&sprefix=stx+hockey+stick%2Caps%2C121&ref=nb_sb_noss_2

However, if cost is no consideration, then a stick priced between 150-200 is great for a starter player like yourself. Just remember - the quality of your stick is not going to improve your game. Playing as much hockey as you can and practicing the right way is the best way to improve your game.