I am new here, but I know the people will try to help you, sure understand you and will offer the you the best advice or information they can.
Those of us who do it, know that injecting is no fun. Many day I have stared at that needle and wondered, sometimes for a few minutes, if I will be able to do it. Then I gather myself, and go ahead. It is hard to stay motivated and stick to the decision that was made not so long ago!
I hope you to learn to cope with this new bump life as thrown at you. Stay positive and don't let the MS dominate all aspects of your life. YOu are still the same you.
Best of luck to you.