The wonderful day

Hi. Today is a very wonderful day. I bought tickets to Moscow.
It's a very strange and crazy city. And sometimes Sometimes I don't like it, but it's capital of the Russian Federation. It's a famous city.
But its It seems to me that I like Moscow and love Saint-Petserburg.

Spb(Saint-Petserburg) is a fantastic city. You must see it necessary. And there live Very good people live there.
I might be wrong, but in Moscow very difficult to live it is very difficult to live in Moscow. The city devours your energy. But all is otherwise in Spb.

This is a good paragraph, I understood everything you were writing about. Only a couple suggestions: Try to not start sentences with the word "And" and the last sentence, "But all is otherwise in Spb", makes sense grammatically, but more common phrasing would be, "Everything is different in Spb." Good work and have fun in Moscow! :)