Need a pc with around €1200 budget in I want to build my first pc, sadly i'm a complete amateur. My budget is around €1200 (including monitor, keyboard, mouse)

I'm planning to play anthem, assasins creed odyssey, league of legends, apex legends. 

Would it even be possible to play these games around 144fps on high of ultra..? (Thinking of buying a 1080p 144hz monitor)

Thanks in advance!
