If you doubt yourself, underestimate your self-esteem, this feeling of insecurity will both pull down you and your future relationships.
You want someone who understands that and can have empathy.
Surely it is necessary to overcome fear and social anxiety, and relationships and dating are a good and healthy way.
But those who went through a sufficient number of relationships know that ideals survive only in some utopian world, in reality they crush quickly and painfully.