Don't underestimate the power of momentum. There's this snowball effect that can happen when you get the ball rolling. If you stop or slow down you often lose that momentum and it takes more to get it going again.
They are always sacrifices. Once you know this then you won't beat yourself up about making those sacrifices. Unless you're totally screwing up something then you have to shift priorities. Until then live with the sacrifices. Own them like a boss.
You can never stop paying your dues. You don't deserve anything. You're not entitled to anything. I know that sounds harsh but so many people want success before they've put in the work. And remember when you do get success - whatever that means for you because it's different for everyone - you need to maintain it and that means paying more dues. Put in the work.