There's absolutely no shame in walking away from one of the degrees. Its just not the right time. I agree with above, studying 2 degrees at once would be too much for most anyone. If you are able and things are right for you, one day you will come back to it and finish it out. Don't beat yourself up over it. Concentrate all your efforts into the degree that you are choosing to complete. You will be able to give it your all and will probably see better grades for it.