Congrats on the T!
Now, the rollercoaster of emotions, that can be tricky. I've been on T for almost two months and had to stop taking my medications for my manic depression. I take injections weekly to avoid the dip in my mood that I would experience if I did injections every two weeks. My mood swings have been frequent- but not nearly as bad as I thought they would be, considering that I'm off of my other meds. If anything the extremity of emotions I feel during a swing has flatlined, but everyone is different and I would monitor yourself and your moods.