It will be simpler for me to help you here than in the visitor messaging system. What type of problems are you studying? We need first to decide which of our forums is the most appropriate place for you to post your problem(s).
We ask that you post a maximum of 2 related problems per topic. This way a topic doesn't become hard to follow with different people potentially helping simultaneously with different problems.
We are glad to help you and there are many friendly and knowledgeable folks here.