Iris, take heart.
There are some 75,000+ ridiculous number of people on here.
There are some that will not get you.
There will be some who will.
But it can be frustrating.
What Rob said is true: "Sometimes what one person feels is normal, others think is a bit too much."
Equally true, and often overlooked however, is the fact that communication is a two way street, and if the other party cannot express to you what the problem is, you can't be expected to be psychic and fix or manage it.
There are a lot of people with that deficiency as well, and their typical response is avoidance: to ignore someone or flee from conversation because they haven't learned to articulate their own feelings on here, or describe the issue they're having.
It's a shame that both these issues happen among adults, whom we expect to have better powers of judgement and expression than children, but often, they do not.
Those who offer too much (however "too much" is defined by one person or another) kind of spook the others, and the ones who can't express themselves and choose to ignore or flee the conversation can fill the other with self doubt.
Don't be freaked, and don't doubt yourself. Chalk it up to the fact that by and large, people here and elsewhere are deficient in one way or the other. And lacking the nonverbal cues we normally have available as handrails in face-to-face conversation, these deficiencies get amplified.
Between the people offering "too much" (which tends to be very subjective) and the people who can't express themselves, it can be hard to find people you jive with.
But the right people for you are out there.
Just keep trying, and know that you have an open invitation to PM me, as does anyone.