The most cringe-worthy statements I've heard on how to handle breakup grief:
From a woman: "The best way to get over a man is to get under another one." From a man: "Just drown yourself in p*ssy until you forget her."
There are so many things off with this I am not even sure where to begin, but I will start with the fact that it will not help you get over them at all. It may numb the pain - it may anesthetize you - but so much of the gift and benefits in facing the pain will be lost.
It is important to grieve and give yourself time to heal.
After each relationship, I recommend taking at least 6 months and stay single and celibate during that time. In the last 15 years, I have had periods of being single and celibate that were 14 months, 18 months, 22 months, and 7 months. None of them started out as intentional - other than knowing I needed to take time - and the duration was undetermined when those periods began, but there are several solid reasons for this.