To be grammatically correct, you should end the first sentence after pastimes. Delete the word “that” and then “I find it entertaining.” Becomes a full second sentence. You could also leave this as one sentence and remove the word “it.” But you don’t want that and it together in this case. If you are writing in a formal setting “moreover” is a good word to use here, but in real life people in the US rarely use this word when speaking. Typically, we would use “also” but it is rarely grammatically correct to actually put also in the front of a sentence. So I’m just mentioning it in case you want to learn to speak more casually. I would end that sentence after the send “time.” When using an adverb, you generally want to just before the verb, so the last sentence would sound better if you said “I mainly ( or primarily, typically, usually all work here, but mostly is a bit awkward even though the meaning is correct.) like…” Overall, this is a very good paragraph. I don’t know your level of English, but I assume you’ve been studying for a while, because your meaning is very clear and use of vocabulary is great. The corrections I am giving are just to help you sound more like a native speaker. Also, keep in mind that other counties have different customs and a person from the UK or Australia might have completely different ideas than me!