Learn to be at peace anywhere. There will always be places to fantasize about, and history to regret.
Knowledge is a double-edged sword and must be used right to avoid falling into despair. Social media has allowed our minds to transcend space and time, resulting in mass unrest for those lost in their heads.
True bliss is being 100% aware in the present moment. When this occurs, there is no thought to chase after. Problems/regrets/anxieties don't exist here. It is only when we let our thoughts rule our emotions, that we become unsatisfied.
Wisdom is the art of enjoying the happiness and sadness of life as it comes, for we cannot have one without the other. Until, you are a prisoner of your own distaste.