Join the club!I am a huge failure and everything I write/do is trash.

Keep in mind that many Taxi listings are fairly high bar and narrow focused. Getting a forward is a great nod that you tracks have reached a certain level and meet the SPECIFIC requirements of that lasting. But not getting forward doesn't at all mean your tracks are not very good or even better. Many of us get returns from Taxi submissions and go on to sign those tracks with libraries and even get TV placements with them. Same with library rejections. I've had songs rejected by that well known Taxi friendly LA library (starts with "C") which I signed with another library and got lots of placements.
And if they are new tracks, you wouldn't have even created then if not for the Taxi listings.
Best,
