His Face looks like cartoon character in UP movie

My Advanced Accounting Teacher1a

Please correct my entry with proper correction please and give explanation.

Today, I studied study1 about advanced accounting. Actually, I like this subject because it is the main subject in this semester and I should study it hard to get a good marks. Based on the experience of my seniors that many students had failed in this subject last year, I can say/conclude2 that it is not easy to pass it. (Or Some seniors told me about their experience with this subject that it was very hard to study this subject and that many students had failed it last year.)

They had failed because my teacher make a set very high standards to pass/for passing. Now, he is going to teach us3 I meet with him in throughout this semester and I am little bit scared of how he would behave with us all. if he always like that. in On the other another hand, I really admire him. He is a very smart teacher4, humorous and energetic even if he is in his 70th year now. years old.(Or even if he is 70 years old now.)  He always likes teaching. One thing that I will remember from about him is that his face looks like a cartoon character in 'UP' movie. It always makes me funny laugh every time he teaches.

Now, I just want have to study hard. I always think there is some luck factor which plays an important part in getting good or bad marks. So, If I will get bad mark or good marks, I will consider myself lucky, otherwise not. I think it's just my lucky. Right now, I prefer/need love to pay more attention to study the process rather than worrying about the results. 

I will try to provide some explanations for you.

1a. Try to give a short and proper heading to your entry.

1. "Today, I studied." Here, I used "studied" instead of "study." Simple present tense is used for the things that happen regularly. As you used "today," I have to change it to simple past tense. Some examples of simple present tense:

1. I always go to school.

2. She works in a sugar factory.

2. As you used "based on," you need to give your decision/opinion/judgment/conclusion about something. Some more examples:

1. Based on the facts, police decided to search in their home only.

2. Based on their experience, they can say that atomic energy is safe.

3. I don't know if you are going to meet your teacher for any reason. I made the changes here on my own assumptions as you haven't mentioned a specific reason or date of your meeting with him.

4. There is no need to repeat the word "teacher" as you have already mentioned that he is your teacher. Still, if you want to use "teacher" there, you can say "He is very smart as a teacher." However, you need to restructure the remaining sentence after doing this.

Hi some suggestions below. Keep writing and all the best.

His face looks like the cartoon character in the movie UP : correction please and give explanation

Today I studied about advance accounting. I actually I like this subject because it is interesting? thought provoking? (I don't think it is a good readon to like a subject because it is the main subject in a semester). I should study hard to get a good grade. Based on experience My senior told me that many students had failed in this subject. They had failed because my teacher make sets a high standard to pass. Now I meet with have him in this semester and I little bit scare if he always like that. Now I just want to study hard. If I will get bad mark or good mark do well or badly I think it's just my lucky. I prefer to love the process rather than the result. 

On the another hand I really admire him. He is a very smart teacher, humorous and energetic even in his seventies. (70th years old he always teach). One thing that I will always remember from about him, his face looks like the cartoon character in the movie UP movie. It always makes me funny smile everytime he teaches.