When i was self employed i had the EXACT same problem. If work came in i constantly said ' I will build it tommorow ' but honestly...Tomorrow NEVER comes.
You have to fight that motivation and just do your ABSOLUTE best to keep making good content and promoting yourself and your hard work will pay off.. You will feel better when likes, Comments and subs come in faster

Keep working hard and soon that lack in motivation will fade and you will enjoy it again

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If you are lacking motivation from personal / family issues then i suggest taking a break from it to get a clear head. Best of luck to you!