As you struggle to be the best parent you can be, keep one goal in mind; that as your kids get older, they should always know that you love them. We all make mistakes as parents, but it's a lot easier for them to understand and appreciate your efforts (however clumsy) if they know your heart in the right place.

Spoiled children are given what they want;
Wise parents affirm their children with their words
And give their children what they need.

You're teaching a lesson each day that you live;
Your actions are blazing a trail
That children will follow for good or for ill;
You can help them or cause them to fail.
- Bosch -

Next time your toddler asks you the question why about the same thing over and over again, ask him to tell you why. This can lead to a wonderful interactive dialog with him, which helps develop his language skills. Be careful not to criticize his remarks, though. Doing so will discourage him from using his own thought processes to problem solve.