I can't wear contacts anymore because my astigmatism got too bad and I can't find a brand I can see clearly through.
I find them easier to put in than take out. To put them in, use the hand on the same side as your eye to keep your eyelids opened. Use your index finger to lift up your lashes and eyelid. Use your thumb to push back your bottom eyelid. Put the contact concave up on the index finger on the other hand. Bring it to the eye and it should suction on. Taking off is really hard for me. You're supposed to open your eyelids like above with the opposite hands. Use the hand on the same side as your eye to take out the lenses. Keep your thumb at one side of the lenses and your index finger on the other. Slide your thumb and index finger together and the lenses should come out. Unfortunately, it comes out for me after several tries.
Hopefully, your ophthalmologist will teach a better method.
For maintenance, I would suggest stick to the usage guidelines. If the contacts are not to be worn over 2 weeks, don't abuse it. Don't fall asleep in them especially if they're cheap circle lenses. The contact can move to the back of the eye or worse, dry up a bit and be stuck to your eye. Apply eye cream twice daily. This is important in preventing wrinkles since you will be doing some tugging and pulling while putting the contacts on. Carry eye drops around. Your eyes may get dry and tired especially if you are wearing them for 8+ hours. Always rub contacts when cleaning them with solution even if the solution is a no rub formula. Protein builds up on the lenses. If not removed, it can cause irritation or infection.