When it comes to finances, i'd suggest to not assume much. Financial discipline is imperative for any startup to succeed.
Following points would be helpful for you to begin with
1) keep a close watch on cash flow management
2) work lean and keep liabilities to a minimum
3) spend capital with a well defined measurement of ROI

You may want to check out the following course on Udemy

https://www.udemy.com/startup-launchpad-masterclass/?couponCode=MASTERCLASS

Also, you may want to schedule a call and i'd be happy to support further