Experienced pros please help

Please help! I'm not making any profits after using thumbtack I'm left left with less than I started with. I paid $50+ for a lead that I can make $175 at the most. After dumping fees($100) fuel ($40) + ($50) lead I'm left with less the guy only wanted to pay 140. Even if I made 175 after the lead cost, fuel , and dumping I'd still be left with less. What should I do. I can't raise prices in here because the Market is so competitive, after doing several searches of my own thumbtack only pops up on Google when you search sum fashion of "cheap services" it's seldomly found under different search results not pertaining to low prices making it super hard for work quality to be valued over best price, thumbtack least cost aren't considerate to our cost, and it literally cost me cents to gain high quality high converting Facebook leads that pay full price. Experienced pros is it worth it? Should I keep investing or leave it to the pros who have better success here?
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