It sounds like you need to niche down a bit. Pick a neighborhood and study it. For example : a neighborhood with lots of rentals next to a college, a first time buyer / working class / basic neighborhood ( many folks think this is #1), Upscale or Executive neighborhoods. You need to start going to Open Houses. Keep the flyers. In a month or two look up what they sold for. ( County tax records, a realtor might help you, zillow etc) Everything flows from what the property would sell for after it was fixed up. ( ARV ) You need to know that number first. Let's say that you pick a neighborhood of 1970's ranch style houses. What were the highest prices and Why ??? Remodeled kitchen ? A pool ? What were the lowest prices and why ? Ugly ? Traffic Noises ? What do most of the houses sell for ? Don't put yourself in a position where you have to get top dollar to make a profit. You want to make a profit if you sell at the average price. If you sell over average , that's just icing on the cake.
Ex: A nice fixed up house in your target neighborhood is 200k. As a rule of thumb you want to buy for 70% of the 200k. But this is just a rule of thumb. Look up the Flipping Calculator on this site. Remember your costs are for repairs and expenses like : points on loan origination, closing costs to title company, monthly payments, utilities, 6% of sales price to realtor, closing costs and sell. Let's say you find a house at 100k. OMG! You are going to make 100k !!!!!! No, you are not. Selling at 200k gets you the following expenses : 12k to realtor, closing costs vary by state...maybe $1,500, 6 mos payments and monthly utilities and insurance ....8k, paying back the points on your loan 2k. This totals just over 20k. OMG! You made 80k ! Oops, forgot about the costs to fix it up .... that was another 30k. OMG! You made 50k. Yep. Celebrate. Now, imagine that you overpayed for the property and bought it at 130k. That difference of 30k comes out of your profit. You made 20k. And, Uncle Sam wants his cut.
I hope this is helpful. I want to encourage you. I don't want you to lose money. A key to being an investor that makes money is knowing what Not to Buy. It's okay to pass. You don't have to buy every ugly house. Personally, I'd rather flip one or two houses a year with a 30k - 50k profit each then work my butt off on a bunch of deals that pay $10k.