Feeling financially stagnant while growing my biz

I have been working hard to grow my own financial planning practice for the past 2 years and feel like it is costing more to keep it running than the revenue I am bringing in. This is my third and last career I am looking to hold since I really love it so much. I knew full and well that this endeavor would need a lot of resources, blood, sweat, and tears for the pay-off to come later in the form of repeat clients, and referrals. Initially I would be overworked and underpaid and work my way into being overpaid and under worked. It seems that this process is taking longer than I had anticipated (I have no intentions of quitting). I am considering pulling in a second gig to help make ends meet-- something like a data entry/work from home job to help supplement the income needed to provide for my family. Does anyone have any go-to resources, outlets, or opportunities for someone like me? I am very creative with a theatre design degree and added experience in early childhood education (program director for a nature based preschool). Any and all feedback/help/direction would be appreciated!
Thanks,
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