Please check for correction !

words to use: curtail, devastate, digress,incentive, incorporate, indispensable,intermittent,rigor,squander and succumb....
Linda never had to work hard to make good grades in high school. But in college, where the rigors of course work were greater, she soon learned that her casual high school study habits would no longer suffice. Linda was also learning how easy it was to curtail time on surfing the web and partying. She didn't realize how badly she was doing until she saw her midterm grades, which devastated her. She knew she had to make some changes right away and began to ponder what they should be.As a(n) incentive to work harder, she tried studying with her friend Denise. But that didn't work; their conversation would squander from European history to personal topics, such as dates of favorite songs. Linda decided she'd have to go it alone. She began to skip parties during the week and also to incorporate the time she spent text-messaging or exchanging emails with friends.She discovered that a good place to study was succumb to her new habits, keeping an assignment book, writing due dates on a calendar, and setting up a study habits, keeping an performance fluctuated, and so the improvement in her grades was indispensable -A's and B's alternated with C's and D's. But little, she learned to intermittent a social life with serious study and earn grades she was proud of.

These are wrong.

was to curtail time
conversation would squander from European history
also to incorporate the time
improvement in her grades was indispensable
learned to intermittent a social life

Please find the corrected version of the paragraph below:

Linda never had to work hard to make good grades in high school. But in college, where the rigorous course work demanded more effort, she soon realized that her casual high school study habits would no longer be sufficient. Linda also learned how easy it was to reduce the time she spent surfing the web and partying. She didn't realize how badly she was doing until she saw her midterm grades, which devastated her. She knew she had to make some changes right away and started contemplating what they should be. As an incentive to work harder, she tried studying with her friend Denise. However, their conversations often digressed from European history to personal topics, such as their favorite songs' release dates. Linda decided she had to study alone. She began skipping parties during the week and also incorporated the time she spent text-messaging or exchanging emails with friends into her study routine. She found that succumbing to her new habits, such as keeping an assignment book, writing due dates on a calendar, and developing a study schedule, helped improve her grades. Though her performance fluctuated, alternating between A's and B's, and C's and D's, she realized that this improvement was indispensable. Gradually, she learned to balance her social life with serious studying and started earning grades she could be proud of.