Where to use the word "be"? I know that this word is a verb, but I don't know when to use this word, I don't question the verb to be. regards

My little vacation In the first week, I went to Hermenegildo Galeana, is a little town, it is near of Guatemala, I went with my friends, We visited jungles, We talked in the jungle in the night, We wanted find, someone animals, but it wasn't possible, We ate wasp larvae (with lemon, salt and chilli) it was delicious, In the night you could saw all stars in the sky, was amazing, four days later I was to the beach, the first day I was to fish in the sea, it was my second time, I didn't feel good, fortunately I didnt vomit, the next day I could swim in the sea, I ate fried fish, in the afternoon I arrived at my home, I went to sleep at 6 pm, I waked up at the 4 am, I did my baggage, I went to zone maya at the 7 am, I learned what plants used the mayas when they was sick, it was very interesting, And finally, I went to measure the population of mahogany, in the jungle with one biologist and one student of forester ingener, We was aproximately 8 hours in the jungle, In this moment I am reading a book that my teachers tell me that read, like good mexican, all at last moment. Thank you, all people that will help me in the correction of this text