What sort of complications after having a tracheotomy will I face?

Infection, bleeding. The most likely problems will be dislodgement, infection, and bleeding. Most tracheostomies exist with minimal to no problems if handled appropriately.
Depends. Why? Swelling bleeding coughing secretions dislodgement of device( dangerous for first 2-3 weeks after then stabilizes so you can change tube) may be improved breathing and clearing depending on initial reason for trach.