Honestly, OP, if you are seriously trying (considering, even) to obtain extracts, that seems to me, to be a loud and clear signal that you aren't actually, truly yet ready or wanting to/interested in getting off of the kratom.
I hate to sound negative when you need positivity, but I have some pretty serious doubts that this attempt will be successful- not only because of the fact that deep down inside, you must not truly have that desire (which is reason enough for most people to fail)- but also considering the fact that you say you are self medicating.
You clearly have some pretty immense obstacles in your way; I'm not saying that you'll fail for sure, or that it's impossible because it's far from it....but I'm saying you're really gonna have to do some soul searching and decide what you truly want, and what YOU'LL have to do in order to achieve it. You're seriously gonna have to plan this out very carefully.
It will be tough, but you CAN do it if you truly want to, and care enough to take the necessary steps.
You know all of the Bluelight community is behind you.
If there's anything to help, reach out. We all wish you the best in your journey and will do whatever we can to help.
Plenty of good-hearted, intelligent, experienced people here for any inquiries you might have, or advice needed. This site and its community are excellent resources and a strong support system; so you're not alone.
Best of luck,
-Perpetual