I just recently did that.
Definitely a hard start financially, and since Riverview is new I couldn't really find seeds as easily as the towns I was familiar with. The first 2 weeks i just got by on saved money and collecting rocks and bugs while seed hunting.
I only paid for gardening and fishing classes and bought cooking level 1 and handiness level 1 books. No entertainment in house. My Sim was probably a headcase, since even his social interactions were with plants.
But by end of week 3 roughly I started making really good money, had gardening and fishing up to 10, 6 deathfish, some lifefruit plants, and cooking almost maxed. Shortly after that the produce sales became really good - 5-10k a week.
Sadly though, before I could get a sense of achievement, my Sim glitched and I couldn't access the supermarket at different times.
Since I also had handiness at 7, I joined the science career. And with skills already very high got a promotion a workday.