Superman,
Would things be easier without kids? Anything that takes time and energy and produces frustrating moments and fills life with concern and worry, by definition, makes life more difficult.
Having a professional basketball career in some ways would make life more difficult too. Game schedules, practices, meetings, conditioning, watching how you act and what you say in public settings, and so on. The real question to ask is whether it os worth the pain and difficulty parenthood sometimes brings with it. The point I'm trying to make with the basketball thing is just to say even those life styles that seem so amazing often come with negatives too.
Parenthood has made me a better man ... <I>because</I> of my kids?
Almost every decision we make of significance will have negative parts to it. Fame brings status and wealth ... and poparazzi and loss of privacy and public mockery and stockers and haters. Becoming the head of a Fortune 500 corporation can bring prestige and power and an amzing life style ... at the cost of children you never quite get to know very well because you were never home much while they were awake.
The question is really whether you can look into the future and see the daily dad stuff you do now as an investment in an amazing future with sons who love and respect you, who come visit with their families on Christmas and celebrate your birthday.
My brother married a girl who can't have children. They will never have little ones to look into their eyes and touch their cheeks and experience a depth and kind of love that can't be experienced with a dog or pet goldfish ... or a fancy car in a fancy house in some exotic location. Sure, such a lifestyle seems exciting and sexy. But in the end, it lacks depth and significance when compared to a life rich with the meaning and purpose family brings.
Just keep this thought tucked away in the back of your mind: Because you have children, because you take the role of dad seriously, because you recognize the importance of acting in ways that are consistent with the role of father, you will grow in ways others can't. You will become a better person.
But just like lifting weights. There will be days that you can hardly get out of bed because you are so sore. Parenthood is tough too. But without the difficulty, we couldn't even begin to reach the potential we were meant to reach. Sure, our role is to raise our kids with love and patience and be examples and role models for them. But they make us better too. We get something huge out of the parenting deal ourselves.
And in the end, we can recognize the difficulty in parenting without regretting being a parent. I can feel the pain of a good workout without regretting having worked out.
So stay in there, keep working at it, remember that your children are here by choice -- your choice. They didn't inflict themselves on you, so never blame them. And NEVER tell them they were mistakes or were unwanted. There is no reason but selfish motives to EVER inflict that kind of pain on them. Honesty used as a knife in the gut of two innocent children is hardly a virtue. They are gifts to be cherished. Focus on such thoughts and let yourself recognize the difficulty, then choose to focus on the miracle of everyday life, loving two of God's gifts to you.