about getting master degree?...help

[golran]

hi …‎
in fact I have a problem and I hope I will find any one here could help with any idea…‎

while the university years , I was concentrating all my energy and a large ‎portion of the time on one Subject because I love it , but the resultant was ‎low grades in other subjects
and now after four years of graduation ,my (c i r c u m s t a n c e s ) is better , so I decided to take the master degree…‎
my problem is >>>I am afraid of short of time in studying …why ‎‎?...because I will have to double the time in studying cuz I wasn’t so ‎good in university ‎
‎ and i dont remmber a lot of past studying ...

am I right about my fears ?? cuz I don’t know what it takes in master
so do you think it is better not to waste more time ,and join in the master line?

or it is better to stay at home ‎for one year preparing my self for the master, by teaching my self to refresh my ‎knowledge’s & information’s in some university subjects like quantum ‎physics – mathematical physics?‎

please give any idea u think it will help , I really will appreciate that ….‎
thanks