Really empathize with you! It does seem like you really want it, in that case, allow me to encourage you to start now. Literally 10-20 minutes of actual practice every day. You'll quickly improve.
Trying! I've been taking lessons for about 8 months. Unfortunately, due to work, my practice routine has been very hit and miss. I'm starting to try to find ways to work it in during breaks for work, using flash cards and such to just take a minute or two to review the knowledge specific bits. Then I have a plan for ways to utilize some of that knowledge and applying it on the guitar when I sit down.
Slowly but surely, I just need to really get a routine going. Thanks for the encouragement!
I've found Rocksmith to be great help for practice. Lots of drills to run, and instant feedback on performance. Fantastic for working on chord transitions and timing. Not a replacement for professional instruction, but a useful tool. Very easy way to take a 15 minute practice break, all you need is a laptop, guitar, interface cable, and headphones.