fourtens
No affiliation, but it seems to be trying to do what you want
I saw a lot of youtube channels and reddit posts discussing how to optimize their ad spend (for example, https://www.youtube.com/watch?v=1O6feWOsbLs)
In the video the person starts a new online store and shows how he measures his return on advertising investment. It seems to be a pretty direct correlation between his ad spend and his increased sales.
How do you match up your thoughts on advertising with the prevalence of these kind of "advertising success stories"?
Also, it's very very common for chem engs (hah, I guess you have figure it out, I'm a chem eng from waterloo) to graduate with significant debt. My first co-op paid 6k as I worked for a professor, my second paid 18$ an hour, third was 15$ an hour, 4th was 22$ an hour, then I got into oil and was paid around 33$ an hour for the last two co-ops. I think I got really lucky - I know many people who just took a term off because they couldn't find a job - and they were sociable and had pretty good marks!
just believe me. It's different in other programs.