I am not a hero(please help me to correct this essay)

These two sentences do not make sense, maybe you could try to rephrase them.

One mountain called "La Mola"

I'm sitting here, in my garden staring at this beautiful mountain! It's only 1020 metres high, and it's in a natural Park called Sant Llorenç del Munt, in Catalonia. La Mola has lovely places where you can go without much effort. At the top of the mountain there is a restaurant! I have been there a lot of times. I usually have a walk around discovering new paths. People in summer walk up at night and have dinner at the restaurant or in the picnic area. The view is incredible, you can see Barcelona, and sometimes the sea. I love walking around this park with my dog!

St. Petersburg

It’s been a while since I stopped writing here. The reason is my recent trip to St. Petersburg. It was my first visit to St. Petersburg in my life and it turned out to be wonderful! I’m going to share some thoughts and impressions about my journey with you. I’d like to begin with description of my way of travelling. Firstly, I prefer to travel alone, without any tourist group or company. It’s not a problem nowadays to get any information about any object you like. Also you can take as much time as you want to enjoy the interesting place. Secondly, I like walking. If it’s a possible to get to some sights without using transport, I seize this the opportunity with great pleasure. On my way to the right place I can (ok but could is better here )come across something much more interesting. Also it’s the best way to get to know the city better, in my opinion. So I was walking around the Petersburg and visiting museums, palaces, parks, squares and other interesting places the whole last week. Of course, it’s impossible to visit everything interesting in this city, but I managed to get to every place (no comma here) I’d intended, and even more. I’ve been I went to Hermitage, Peter and Paul Fortress, Petergof, Tsarskoye selo, Saint Isaac’s Cathedral and some other not so well-known places. To be honest, some of the most popular places disappointed me a lot. Not only because of huge queues and crowds of people, but because of its uninformative of the lack of information / they were uniformative. I’m going to describe some of them in my following piece of writing. At the same time I was absolutely fascinated by some not popular or internationally known places like Lyceum Museum, where Alexander Pushkin (great Russian poet) had been studying, or The Apartment Museum of Alexander Pushkin, where he had died. Actually I got much more interested in his life and work after my journey. In conclusion, I’d like to say that I think everyone can find something in St. Petersburg of his own interests to interest them though be it were art, music, history, religion, etc. It seems to me that you could just walk in there and enjoy the appearances of the buildings, because any one of them has some interesting history or architectural feature.