Those are some notices (in parenthesis) for the mistake (in bold) I made in a sentence. But I don't know how to fix it.
Due to the lucrative profit from this practice, people and companies don't hesitate to intensely (wrong word) cut down myriad trees (wrong form) and become more violent.
I know I was using the wrong word but for "intensely cut down", I meant people become harsh and more aggressive/hunger in cutting down trees, so I use the adverb "intensely". And for "myriad", I meant a very large number of trees.
Please help me find the correction to them and if you can give me some explanation, that would be great!