i am now a lifer. yay. it will probably take me that long to start remembering past tense negative.
i am not really studying this stuff just attempting to brute force it using srs. so my stuff stays at zero for a long time until i start memorizing. i am in no rush
Welcome to the club! 
Best of luck in your studies 
Welcome! Congrats! Don’t worry, take your time, steadily stuff will make sense
Welcome! Enjoy the grammar
By the way, if you ever want to just brute-force verb conjugations, this website is quite useful.
Have a good time!
welcome!
just relax, take your time, since it’s not a race. besides steven kraft’s website, you can also use `
http://baileysnyder.com/jconj/ this one too.
and believe me, there are passivecausativepotentialalittlebitthisandthatnegative forms too, it won’t get any easier than past negative.
heck, i still don’t know why you want to say “you can” in a “nakerebanaranai” fashion.
Don’t worry.
You will find your way. You can go the distance. You’ll be there someday, if you can be strong.