Social phobia

i am a male, 40 years, married,no children, manager.
the problem that i am struggling with for most of my life is shame/embarrassement. i have lots of trouble with my social life and at work. i have very limited social interactions and when i have to talk in groups i often get red and start to transpirate.
i think that the cause comes from my upbringing. i grew up in a family whithout communication and expression of feelings. mij parents are always afraid of what other might think and hide their feelings. when i was 12, i decided that i didn't like the way my parents live/think and closed myself completely. i have never really talked to my parent or confronted them.
another problem is my appearance, my right eye doesn't look straight. at the age of 10, i had an eye operation, since that time, my right eye coordination is impaired. i haven't been confronted about my eyes by people very often, but i remember very well the times this happened, it always generated a feeling of uselessness and wanting to disappear from the world.

i didn't experience anything traumatic in my life, like abuse or violence.

i would like to know how to get rid of getting red/transpirating to improve the quality of my life.

regards