Broken sleep

Hello Guys ,

I am like 1 year out already .

I am having issues with sleep since october .  For now I have it in a way that is very hard for me to fall asleep , and I have an episodes like sleep half hour or 1 hour , then I wake up constantly . Sometimes better , sometimes worse .

Sometimes i get 2 days normal sleep , then I go for workout , .. interestingly workout makes me again not able to fall asleep .

Its like 1 step forward , then 2 back .. Reaally I am 27 .. I want to get in good shape .

Also I broke up with my GF a month ago . Lot of memories comes to my mind and I can feel my body react automatically in some insufficient way .  How can I make these thoughts neutral ?