I would like to suggest you change your perspective of this just a bit.
From the above, to:
"I would like to stand up for myself more"
By:
Deciding what type of behavior and interaction that YOU want, and what YOU will accept or reject as defined by your wants and needs.
Changing your boundaries to be about you like that, can have a much bigger impact to your psychology that I think a subtle change like that is an extremely important one. It can and will take work to maintain that mindset, but I believe it is worth it.
M: 41 STBXW: 41 D: 9 Bomb: 4/26/09
On board the D train now..
"Suffering is when we try to change what we cannot."