Well, it's ok when I pick up a girl alone without any rival.
But when there exist(s) rival(s), I often feel inferior to them, in terms of appearance or height.

How to deal with it?

Dude, if you have this complex, girls will notice this the second you approach.

Start by approaching what I call 'practice targets' (e.g. HB5-6). They are generally more friendly and easier to approach in a group setting where all their other friends tend to also be HB5-6.

Start out with just a target with her friend and not a group of them (e.g. 3 or more). The more obstacles you have the better your game must be.

It also helps to have a wingman with you. If you don't have one then get one. They are good to help you with your game and confidence. Instead of just you approaching, both of you approach and let him take the lead if you feel like you are not ready but don't appear subordinate.

Over time this problem will go away, you just need to get out there and overcome your fears.

Someone suggested just going out and forcing yourself to just go up to woman patrons in the mall and introducing yourself to them. Some make it a game like approaching 25-50 woman at the mall in one day. If you do that you are surely on your way to recovery.

To quote Roosevelt (or something like that):

Best,

J-Dub

_________________
J-Dub in DC

Its better to be the predator than the prey.

You need to be a good player if your gonna be successful at the game.

Fear is a reflex.
Confidence is a choice.
That is all you need.

Fake confidence until you have confidence. Don't analyze it, act on it.

Life may be confusing.. but thinking is for the weak.

Google image search "courage wolf."
All the inner game you will ever need.