Jade I too will aplaud your loyalty to your Master. Though there are a few things that I will say.

From your descriptions I thik that you may have made your ties a little to tight. For doing all of that type of stuff by yourself.

I am also curious if you have talked with your Master about possibly getting a smaller butplug and use it untill your ass gets used to it and then slowly move up in sizes? From what I have read about anal play with those toys people new to them should start off small for it can become increadibly painful.