you should try switching mains

depending on the average level, if your server's average is higher than your level, i recommend you go earth and go with maybe hinata, tobi, gnw kankuro

if you're at average or above average level, go fire, and use tobi, kakashi, hinata/neji

if you insist on mb, use kimimaro, guy, sasuke and make sure to use the immune for 2 rounds passive

my recommendation aside from that; raise your bp

not sure if there's a nice way to say it but it's not exactly high for your level (my alt is at 16k.. level 67)
use coins to strengthen, and use summon runes pls, level up magatamas, don't do 8 gates until your bp is like 15k

not sure what ninja you're using now that can cause 9.3k bp but you really need to raise it or no matter what team you have you'll most likely lose