Well, it is okay to stop if you don't have the "flow." But, if that happens too often and you produce only a few hours a day, you really should try to break that wall. Otherwise, you're fine!

Something I always do when I've been hit with writers block is take a 5 -15 minute break and do something relaxing. When that doesn't work I spend time making synth patches.

I usually stop writing music and focus on mixing when I get writers block

A key element in music production is consistency. Working 4 hours in a day and then taking a break of 2 days, is not being consistent.

Instead you want to set up a time for ever day. For instance in my case, I produce about 90 minutes a day with a break after 45 minutes. Within these 90 minutes I put up a small goal. I might start with melody & chords and a basic sound idea. This is my main goal for first 45 minutes. After the break I will arrange it into my pre-made arrangement. When the 90 minutes are over, I'm done. I don't produce longer, nor shorter. If shorter, I organize what I made to keep me busy.

After building up consistency, goals are another important subject. Before you start you should set up a goal for your session. Make it a small one. Don't do more. Sure you can do more and work longer. But you create a higher chance to fudge* everything up. With smaller and less goals per session, you'll gain more satisfaction and motivation. Simply because of the fact you accomplished something today.

I hope this helps you a little bit. It's all a mind game, which can be easily overcome with small steps.

A key element in music production is consistency. Working 4 hours in a day and then taking a break of 2 days, is not being consistent.

Instead you want to set up a time for ever day. For instance in my case, I produce about 90 minutes a day with a break after 45 minutes. Within these 90 minutes I put up a small goal. I might start with melody & chords and a basic sound idea. This is my main goal for first 45 minutes. After the break I will arrange it into my pre-made arrangement. When the 90 minutes are over, I'm done. I don't produce longer, nor shorter. If shorter, I organize what I made to keep me busy.

After building up consistency, goals are another important subject. Before you start you should set up a goal for your session. Make it a small one. Don't do more. Sure you can do more and work longer. But you create a higher chance to fudge* everything up. With smaller and less goals per session, you'll gain more satisfaction and motivation. Simply because of the fact you accomplished something today.

I hope this helps you a little bit. It's all a mind game, which can be easily overcome with small steps.

This!

I started saying to myself: today I will work on transitions for this song and that's it. I just do that for about 2 hours and I make it really tight. (Don't underestimate transition importance in song energy.) Then when my goal is complete: I either stop or just mess around with things that maybe aren't necessary but it's all gravy from there. Spending time everyday is important to keep your skills from getting rusty.....now if only I had that same commitment with my piano lessons.