Parsha Vayishlach - The Best of Your Abilities

As Jacob returns to meet his brother Esau after 22 years, Rabbi Jack Melul at the University of Oregon and JSU/NCSY in Eugene Oregon, shares a commentary from Rashi: how did Jacob keep the 613 Mitzvot while living with his father-in-law Laban away from Israel. What is the distinction between being able to perform Mitzvot versus trying one's best in order to follow them?