Missing a deadline may be incredibly stressful, and deadlines can be very daunting. But we all have to face  failure before we achieve success. A successful person has had a lot of mistakes in his life, he may have crossed the deadlines to submit a particular work but does he let himself down ? ...Never! All they do is improve themselves, manage their time schedule, do brainstorming before starting the work and then devote their full mind and focus on that particular work only. If you can do multi- tasking, then it's absolutely a good thing but if you cannot then, don't force yourself to do many works in a particular period of time. It may lead to an unworthy outcome and may not stand upon the expectations of yours. All you shall do is maintain a particular mindset and time zone that from this to this time period you'll be working on this particular project according to the deadlines. If the deadline of a particular work is far then the focus shall be on to the work of which the deadlines are merely to be crossed. You won't be the first person to do this, either, and organizations have rules in place to assist you in getting back on track. All you have to do is move swiftly and communicate with your teachers and advisors so they can explain your alternatives to you. Be respectful towards them and do what they ask you to do. Be grateful to them and try to never repeat the same mistake in future.