Having some truck issues with a new company and needing advice.

Hey all you awesome people, so a little over a week ago i finished my month on the road with my trainer and i was all wide eyed to be seated in my own rig and making some money. Welp, the truck they gave me was dead in the corner of the lot and i found out from my trainers dm it had been to the dealer twice for transmission issues.

I spent a week at the shop getting the transmission looked at, getting the engine lights checked out, and a brake air issue fixed. So a couple days ago i took it a few hours away to san Diego to get a load. Everything was fine besides a little bit of a rough shift but it was manageable.

On the way back it would randomly jerk and give a "starter blocked, shift to neutral" message and sometimes a "transmission will not shift" along with both check engine lights flashing. This is a 2019 freightliner Cascadia by the way. On 215 during rush hour it decided to get stuck in 9th gear and dies in the right line (barricades were up so no where to really go besides as far right as i could). I Googled a transmission reset for the truck and managed to get it back to the shop i was stuck at for a week which was about 20 minutes away from where i was at.

Im currently waiting for the shop to look at it again but it seems like an issue that won't go away. Any suggestions for what to do with this situation? Ive been hanging tight and im still extreamly green so i dont want to just leave the company because of one bad truck, but they seem hell bent on sticking me with this one and it really dosent seem safe when the transmission can give out at any time. Kinda left twiddling my thumbs here

 

Im from Louisiana, and yeah its a mega company, ill just say the name is very similar to Eestern Wxpress, and supposedly they're going to be working on it again tommorow so we will seen.

Im under a 6 month contract i belive but to get out is 2,500 which im already saving for because im planning on leaving after 3 months after more doors open up. I just didn't want to ruin my record or look like i hop ship every time something gets rough