大家帮我看这英语有无语法错误~From Monday until Friday many people are busy

大家帮我看这英语有无语法错误~
From Monday until Friday many people are busy working or studying,but in eventing and on weedends they are free to relax and enjoy themselves.They are many different way to spend our spare time.
Almost everyone has some kind of hobby.I think that is so good.Because some hobby enble us to feel happy.Nothing is more important that to feel happy.what we need is happiness!
It is obvious that hobby is important.some hobby look like is not important,but the pleasure is gieves us is important.