No more excuses, flossing is important admit it. Practice in front of the mirror for a few days and before you know it you will be a pro When I floss my gums bleed!! An even bigger reason to continue flossing. Bleeding gums are due to gingivitis(inflammation of gums), regular flossing will keep away the bacteria and the bleeding will stop in a few days
Flossing might cause discomfort if your not used to it. Your gums might be tender due to inflammation.. Give it time. My teeth are too tight and have no space for floss There are no teeth too tight to floss. Meet your dentist you might have a cavity, or a loose filling. Still having difficulty try waxed dental floss Waterpik can be used instead of floss. Waterpik is an adjunct not replacement. Flossing not only removes food particles but more importantly plaque which prevents gum diseases How to Floss? American Dental Association gives these tips for flossing right

Step 1
Use 18 inches of floss. Wrap most of it around the middle finger of one hand, the rest around your other middle finger.

Step 2
Grasp the string tightly between your thumb and forefinger, and use a rubbing motion to guide it between teeth

Step 3
When the floss reaches the gum line, form a C to follow the shape of the tooth use a gentle up and down motion to clean the area.