Instagram Proxy Question

I have been running without proxy for my 5 accounts for around 2-3 weeks now and I am using FL for all without any problems. I am a little hesitant to create the 6th account without buying an IG proxy. My questions are:

1. If I buy 1 IG proxy, can I make 3 new accounts and start all those 3 with the new proxy and still manage the existing 5 accounts without a proxy?
2. If I buy 2 IG proxy, can I start 3 new accounts and use the 1st proxy, then put all 5 existing accounts to the 2nd proxy?
3. Which is the better route for me, 1st question or 2nd question?
4. Am I right to think that once you create new account using an IG proxy, you should only use that proxy to manage that new account?

Getting some answers would mean the world to me as I am eager to add more accounts to my army. Thanks a lot! :cheerlead

a proxy is just an ip.
you dont want to change your ip too often.
i did accidentally access account from wrong ip's sometimes, luckily with no problem.