Someone give me some advice...

I recently had my car go through some repairs and I found out that one of my torque converter mounts (to the ring gear) is broken and at high rpms, the car vibrates pretty roughly.

Also, when in 3rd (found this out tonight ) the car tends to slip out of gear and rev like I'm in neutral. I can't get into fourth and getting the car up to 75 isn't easy.

Someone help. I miss my properly running baby and it makes me want to cry (not really, but it sucks royal... (edited for language))