How can I study lot of subjects in two weeks for semester exams?

For the key subjects you prioritise the most, set aside more time for it. Create a timetable so you meet the hours you set aside for it. Before each study session, create a to-do list so you manage to do all you wanted to learn and so you spend your time effectively. For content heavy subjects, write down all the information you learn using colourful pens onto a mind map. Recreate this mind map, after you look over it for a couple of minutes, but this time in black and white. After this, compare the two mind maps and see which sections of information you missed out. This helps you improve your memory but also shows areas of your subject you need to go over and refresh your knowledge in. For every study session you do, set a timer for every 20 minutes. Every time the timer goes off, reflect on how productive your study session has been and how much you learnt. This is also good preparation for exams when you have to write a lot under timed conditions as the use of a timer can cause you to work more faster but more efficiently.

My best advice is to make a revision timetable. I found this really helpful when studying for big exams. I tend to do 2 or 3 subjects a day spending a few hours on each. Usually I do 30 minutes of 1 subject, take a minute break and then move on to the next subject. This stops me from getting bored as quickly. I also usually summarise my notes onto revision cards so I remember the most important points from my notes for the exam. Past paper questions can also be very useful as they allow you to realise quickly which areas need the most work and help you to develop exam technique such as the specific wording that examiners like to see.

Prioritize your time. Figure out your strengths and weaknesses by writing lists and studying by list of priority. Leave the stuff you feel best about for last and spend the least amount of time going over the parts your comfortable with. Give yourself plenty of time and don't procrastinate and cause yourself unnecessary stress.

Consistency is important You have to read read read according to your capacity and you tine table.

First, make sure you set goals for yourself. Create a schedule and stick to it, but don't burn yourself out! Review important topics and really study and learn certain parts you don't know. If you're doing fine in a subject don't spend time studying for that. Some people like to make notes, but I recommend just doing lots of practice problems. Study groups and asking your teacher for advice also helps. Two weeks is a short amount of time, but if you really stick to your schedule you'll be fine! Just don't overwork yourself because sleep is extremely important, especially before an exam!

Space it out! Do a little bit each day, and make sure you set times for breaks. Also, get out of your house! Go to the library, or outside, or to a coffee shop. Turn your phone off and just work, and then let yourself have fun. Make a schedule and a list of what you need to do, when things are due, and when you want to finish certain assignments. Focus on one thing at a time so you do not get overwhelmed, and follow a schedule to stay organized. Limit your distractions and try to find different ways to motivate yourself.

What I do is to write down concise key concepts for the subject on a piece of paper and try to use a unique and memorable way to remember them

This is going to require careful structuring. You definitely want to begin by highlighting and figuring out your strengths and weaknesses. Don't prioritize things you already know, since you can already do it. Just brush up on them if you have time. But you want to prioritize the things you are not good at. This cuts the time to study. Next, do problems. This is probably a no-brainer but you have to continuously practice to cement things you learned long ago. Lastly, don't torture yourself by studying endlessly. Schedule it carefully. Id recommend trying to find the "Pomodoro Technique" for quick studying.

First, you have to believe yourself that you can do it. Find your motivation to go through it. Then, make some schedule that divides your time between studying and other activities. Order them based on your priority. Make sure that your schedule is balanced, so you got enough rest and won't be stressed too much. And last, when the exams come, no matter how the result is, remember that the most important thing is the process. You have tried as best as you could and at least have learned how to manage your time. Good luck :)