Воткните ПРЕДЛОГИ for in into on to Take this booklet. Its

Take this booklet. Its for people with sleeping problems theres a lot of good advice in it. I spend a lot of money on my girlfriend. I bought her a gold ring for her birthday. I go to the gym three times a week: Im trying to get into shape.

Необходимо держать в голове, что существительное "advice" неисчисляемое (форма множественного числа невозможна). Если нужно сказать по-английски "несколько советов", употребляют, например, "pieces of advice".