Yes, doing the work and selling the work and getting paid are 3 different jobs.
It is possible to build a sustainable business on top of 90 day engagements. I don’t recommend it, but it is possible.
You need to consider yourself a small business. Not a freelancer, not a consultant, but a small business.
Get a good accountant to keep you um…accountable.
Alan Weiss is my favorite author on how to run a high margin solo business.
The "value based pricing" book was great. Here's a nice "hot take": https://www.alanweiss.com/styles/pdf/The%20Case%20for%20Valu...
re: sustainable business on short engagements - I had a mix of long-term contracts and short-term gigs. The short term gigs were the most fun, but most stressful, so I always tried to bill them at the highest rate (and didn't mind if I didn't get the gig because I was bidding too high). I valued the long-term gigs tremendously for the "stability" they provided.
Having a diversity of Customers was the key to my piece-of-mind. As long as I didn't do something so bad that my name would appear in the newspaper I knew I could screw-up with one or more Customers and still have a livelihood, even if I did have to tighten the belt for awhile.
I can't agree w/ the statement re: considering yourself a small business enough.
Definitely have an accountant. Learn bookkeeping if you want to minimize accountant expense. Take a 100-level college accounting class and you'll know enough for a solo venture.
* Value-Based Fees
* Million Dollar Consulting Proposals
Any one of those will have bits of the other two in it. MDC establishes the mindset, the other two are deep dives into setting fees & drafting proposals the learnings in both of which served me very well.
I was on an individual HDHP for nearly 20 years (pre and post-ACA) and it maddening trying to explain to medical professionals that I actually cared about the cost of treatments. (Never mind trying to get cost estimates before treatments-- that's nearly impossible.)
I once found myself nearly begging an ER physician to order a specific lower-cost diagnostic test in lieu of the higher-cost test she wanted to order. She couldn't seem to believe that I had a low 5-figure deductible and that I cared about the cost of treatments. She was incredulous. That's happened multiple times.
(If you have children and you talk to medical professionals about pricing be prepared to be treated like a bad parent who places economic value over their child's well-being.)
A few states have laws on the books which compel health insurance companies there to sell corporate health insurance plans to sole proprietors and single member LLCs. Florida is one example.
(Florida also tends to have some of the best health insurance options in general in the US, at least as of several years ago.)
Sadly, just because the state law says health insurers must sell corporate plans to sole proprietors and single member LLCs doesn’t mean those health insurers will happily sell you a corporate plan without a fight. For example, I tried to buy a corporate health insurance plan via a Florida sole proprietorship, per the state law. Every Florida insurer I contacted refused to sell me a corporate plan.
I ended up calling the FL regulators who ensured me Florida law indeed does compel these companies to sell me the plan. They either just didn’t want to sell me the plan, or their corporate division was entirely unfamiliar with working with sole proprietors. I left the US shortly thereafter.
If I were in the US, I’d try for a corporate plan again, maybe even in Florida. Unless something has changed, the alternative is far worse. E.g. paying $600+ per month for a plan with essentially zero out-of-state coverage, a deductible so high it almost makes no sense to even have the insurance plan at all for a healthy young person, and a bunch of weasely out clauses that let them screw you over even if you pay them ludicrous sums of money. Plus if you’re on an individual plan, the health insurers tend to systematically deprioritize you compared to their corporate customers who have far more bargaining power than you do. I would sooner go uninsured, or leave the US entirely.
This is still true per the lenders I've talked to as of late last year.
I've transitioned twice from FTE roles to long periods of consulting.
Things I'd consider if I was doing it now (some advice only applicable within the USA, sorry):
Best of luck!