Story:
Once upon a time I . . . hit actual 0 credits DX
So I set a goal of farming too much to the point I won't worry about it anymore :3

Years ago there was a whole month of Credit event, so I bought 30 day Credit Booster, but I only started farming Credits when there was only 11 days left :c

And so I went in SOLO High Index and did round 2s 50 times for a total of 100million per day for 11 days. I sometimes fall off the map because I fell asleep midmission.

Once I had 1,100,000,000 I donated 100m credits to the dojo and how I got another 200m to buy 100pcs Pedestal Prime and 100pcs Pedestal Umbra is by doing Profit Taker with another Credit Event.

Yes Profit Taker is better for farming Credits but at that time I didn't have Zenith yet and there was no Kuva weapons

Thanks for reading ;)!
If you don't have any of those mods or access to any of the stuff then... just type "LF High Index" in the recruiting chat