OP, don't let choosing a totally inappropriate bike for a return after long absence from cycling be the reason you cannot bond with the sport again. Learn what you need for fit and for the type of cycling you want to do and make the change from what you bought. A TT bike is so highly specialized that only a small fraction of cyclists who are dedicated racers will every really be happy with one. Resell it, do your homework and start over. Lots of folks are here to help.