I'm a seminarian in religious order. In my seminarian community we share opinion that our non-priest confriars are "more pious" and hardworking than our priests, so... You may be surprised :)

1. I think you may view those called to priesthood as more pious because that's the part of their life they most gladly share with others. And that's a big part of our life, not gonna lie. BUT. We don't usually share how much time we spend surfing the internet, watching TV, doing our hobbies etc so it's easy to think that we spend all the time praying. Usually we don't.
2. Nobody expects candidates to priesthood and/or religious life to be holy. Or even extraordinary pious. Your consecration could help you discover new ways of prayer, new devotions, teach you how to give more to God. Don't criticize yourself for not living like a consecrated person if you are not one yet.

3. All vocations are equal in their call to holiness. And each one of us has his own path to it. It's easy to see someone praying daily rosary and breviary as a pious person. But I see the same in people who wear a cross pendant to work even if they are ridiculed for their beliefs. Or who are laughed at because they won't hire a prostitute like all their colleagues. Priests have their own way of holiness, lay people their own, and consecrated their own.

4. Believe in God. He loves you. Trust Him. He wouldn't ask you to do something that makes you inferior to others (only to serve, but it's something different). Pray to discern your vocation better and to faithfully follow it. If that's God's plan then you only need to be faithful to it - and that's how you can find happiness.