Ok, so I've been betting for about 2-3 years now but have just recently gotten fairly serious about it. I'm not a big bettor as I'm a college student which limits my time and ability to make money (I only bet about 20-25 per unit).
The problem I have run into is that my bankroll has stayed almost exactly the same for the last 3 months. Over the course of making 5-7 bets per day of various unit sizes, my roll has stayed within 4-5 units (up or down). This has become very frustrating to say the least. I think my main problem is that I lose to much on my "small" plays and win to little on my "big" plays. I'll lose $100 on a play I'm only fairly confident in and only win $250 on a play I'm really confident in. I just can't get myself to put $5 or $10 on a bet, as it seems like it will have little to no significance.
I would greatly appreciate any pointers from someone who has been in my shoes. Some suggestions as to what my unit size should be in comparison to my roll, what's the most I should risk in a given day, etc...
Thank you very much in advance