Way too many variables to answer without more information. Docking alongside, bow in or stern in? Wind and current can dramatically change your strategy. If your only opportunity to practice docking is on a once a year charter you are not going to master docking. When I bought my first sailboat 20 years ago it took me dozens of docking attempts to get proficient enough that I didn't sweat it.
Pulling alongside is usually pretty easy. Pulling bow in is easier than stern in. If your shore power cords will reach the power pedestal stick with bow in docking.