Hi Ivan,
Great job practicing the new grammar and vocabulary.
1. Is correct (search for subjunctives) but the pronoun "him" after advise is redundant. Though the word excess also has a begative connotation.
2. Perfectly fine to me.
3. Except for the two typos and a collocation mistake, there is no problem with the sentence. If you were to make it more formal, you could use "attitude towards/toward" instead of "attitude to". And "negative attitude"is a good collocation to be used here.
4. The collocated adjectives with the word "film" are fun, good, great, terrific, wonderful
5. And this one is fine as well.