First of all, really the wrong site for this kinda of advice.
If you can't see where you are cutting, then there is an increased risk of injuring yourself. You would have less control, as you would have to bend awkwardly to get there. And you can't really know the damage you have done, unless you can a mirror or two. Just because it doesn't hurt does not mean there has not been major damage done.
And here is the obligatory "We totally do not support self harming behaviors and we are here to help you stop." speech. Self harm is an emotional bandaid on your life, and it only helps for a little bit. It does not SOLVE the problem, only distract you from it for a bit. And in the end, you still have scars. Your problems that drove you to self-harm are still there. And there is also the greater risk of infection, bloodloss, nerve damage.
So, without further ado! Here is the exhaustive list of
Alternatives to Self Harm! 
Use it! Abuse it! Staple it to your wall and keep it in your person! IT will give you a list of activities to do, based on your trigger. And it is really exhaustive! Honestly try each one for 5 minutes, and you be doing them for a day and a half.
As for emotional support, We are here 24/7... (ish.. if the site doesn't crash.) and we a glad to help support you. You can alos talk to a trusted adult in your life. Parent, Aunt/Uncle, GRandparent, Teacher, Religious leader, Coach, School Counselor, Club Leader, etc.