There is simply no way of having a meaningful career, or a loving relationship, or just being a regular human without feeling some level of negative emotions. If we hide from them now, there will always be a new opportunity for them to come back again. Facing difficult emotions is a fundamental part of healing.
We can choose to meet death like a great opponent about to begin an epic sword fight. We grow in size by our ability to live life in its absolute fullness. We let no moment of beauty pass under our nose without sniffing it and hugging it and holding it close.