You're right that value based pricing [ie what it's worth to the customer] is a better approach. Both the Freshbooks book Breaking The Time Barrier [1] and Brennan Dunn's website [2] are good resources on those. But they might be too advanced for someone just starting out.
You do need to determine what your own base costs are though, at least to ensure you're not going backwards. The calculators I linked to above at least help with starting to think about those costs.
You do need to determine what your own base costs are though, at least to ensure you're not going backwards. The calculators I linked to above at least help with starting to think about those costs.
[1] https://www.freshbooks.com/blog/breakingthetimebarrier/
[2] https://doubleyourfreelancing.com