Anxiety may come from our minds and be based in our history, but it is expressed through the body. If you want to be less volatile in social situations, you probably want to increase serotonin. There are holistic ways to do this and there are medicines. The holistic ways require stable blood sugar, which means discipline in eating, and also achieving and maintaining a healthy body composition. Muscle evens out our moods by insuring a steady supply of sugar under stress. Fat makes us emotionally volatile by causing overproduction of insulin which creates a cycle of comfort and stress eating and also unbalanced the whole endocrine system. It takes time and effort to bring an overfat body into balance, but emotional stability requires it. Shorter term aids are attention to blood sugar (plenty of protein and avoid sugar spikes), regular exercise (walking), meditation, relaxation/restorative yoga, SSRIs and anti-anxiety remedies. GABA depletes under stress and can be replenished through yoga or supplementation. Replenished GABA fixes other imbalances. Theanine is also helpful. Sufficient B vitamins are essential and additional B6 can be very helpful for social anxiety.