Jonesy,

With all the advice and photos available to you from experienced wearers and MB's video (a must for newbies) you can can do it.
Not saying it's easy. There is a learning curve and you will get frustrated at times but in the end you will be glad you did it. If you over-analyze and worry about "this and that" you will never be able to move forward. Don't be a prisoner to your fears. You just have to stop thinking and fretting about it and like the ad says "Just do it". You can't put a price on the boost to your confidence and self esteem the improvement in your appearance will give you.