1. If you don't use capitals, a lot of the teachers here won't respond, because they'll think you're not serious.
2. A lot is two words.
3. End sentences with one period, not two.
4. When we pluralize words that end consonant-Y, like hobby, we usually end it with -ies: hobbies. If the word ends with vowel-Y, we just add an S: monkeys, Fridays, boys. I don't know why.
5. There is nothing wrong with short sentences! Get good at short sentences first, then learn to make long sentences.
How long have you been studying English? I think you're doing well.
Student or Learner