Your bicycle is a death-trap, waiting to kill you. Sorry to break it to you.
As you’re bombing down a fun trail in the woods, going way too fast because it feels so good, a crazed squirrel will stop in the middle of the trail and stare at you. Happens all the time. In a panic, you’ll grab a handful of brake levers. You’ll fly like a human arrow headfirst into a tree. Dead before you hit the ground.
So instead of spending a dime on that suicide machine, put all the money you were going to spend in a coffee can. When there’s around 500 bucks in there, go to your local bike shop and ask about a good used trail bike. I bet they’ll be happy to steer you to a sweet ride that you’ll be thrilled with.