For P2P player, when do you call a stop to rolling?

I set myself a spending limit and then stick to it.

In saying that I also never aim for SSRs (but have gotten lucky on many occasions) and tend to only aim for SRs

So I’m not F2P myself, but even I will set a limit as to how many SQs I’m willing to spend to get a Servant. Some of the answers seemed to ignore your F2P caveat. So if you really are, you have to look at it from a couple different ways.

Obviously you have a finite amount of SQs to work with (for the most part) so you have to determine how important the Servant you’re rolling for is to you. No servant is absolutely necessary to get through the game in anyway, so I’d first base it on how badly you really want them. If they’re your favorite and are a limited time banner and won’t be added to the mix post banner, then I don’t think you should feel guilty throwing as many as you want at them/ if they’re going to be added permanently after their rate up banner, then I would set a smaller limit and remember you may always get lucky and draw them during another banner,

But don’t always hold back if you really like a servant just cause you’ll want some others down the line. 1) there will ALWAYS be another servant you want. The game will make sure of that lol. 2) there is no certainty that you will get the next servant you want either. One thing I constantly read from supposed F2P players is that they are saving some SQs for someone later down the line (usually Merlin) and that they are going to get him/her cause they love em or it fits their team well, but if you’re really F2P, you’re most likely NOT going to get that servant. People always say how they can’t believe they didn’t get so and so after 100+ SQs...sadly that’s not very many lol. People have used thousands to roll for specific servants and don’t get them. It’s not meant to sound as a bummer, but a reminder to just go after the ones you like. If you don’t get lucky, they’ll end up in your friends support or you can request someone who has em. So if you really like DaVinci then don’t feel bad going all out for her. Like I said, the odds of getting the servant you want are always so low anyhow so you might as well go for them when they are rate up. And like you said, you got some other good ones along the way so that’s a huge plus!

I usually buy one of the large SQ bundles a month, that way I can at least have some rolls for banners I like and bank heavily for future ones if nothing good is currently up. For me, I’m super excited for the summer banners. I haven’t rolled on anything for awhile now as there isn’t anyone I’ve wanted or needed, so I’ve got 440 SQs banked for the summer banners. But I’m also aware that I may not get many or even any when the time comes, but those are the servants I’m excited for so I’ll use all thebSQs I’ve got and hope for the best. Sorry, long ramble just to say go for who ya like and don’t feel bad cause you did lol! And I wish you the best of luck on your roll! Sometimes those last day yollo rolls can really be lucky!!