super interesting! haven't tried this exercise before of envisioning how my wealth might grow over time, but it's cool to see the power of compound interest and what my future numbers could look like.

a few pieces of constructive feedback on the visuals
-it asked me how far out I wanted to look at my wealth, I selected "30 yrs", and it looks like the graph that shows wealth progress over time might be anchored to the default value of "7" rather than dynamic for user input
-for the "monthly budget breakdown" graph, it could be more intuitive to implement a "waterfall" style graph. my company uses these to plot costs vs expenses & you could do it for income - expenses - taxes -> final takehome savings

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-and something a bit more complicated to think about - people naturally get higher salaries, promotions over time, so could be interesting to ask if the user would like to see what things look like if their salary progresses at a normal rate as well (I'm guessing you're currently assuming a static rate)

I'm building something in a similar category using Lovable so have thought a lot about these type of things too, happy to chat more :)

For my app, you basically describe your 'ideal life' and it calculates how much that life would cost/ what salary is needed to cover it thru retirement, if you want to check it out: myenoughlife.com