Mr. Clam, yes, you can use carbide on your lathe BUT you will have an 11" lathe with 1HP and this is not the target machine the insert makers had in mind when they designed their inserts, sorry. Nevertheless, some inserts will work for you but you need to choose them well.
If I were you, the first thing I would do is order
David Best's book on inserted carbide tooling. This is, by far, the most complete source of advice on carbide tooling anywhere, for any price. David will guide you on everything you need to know about the subject, from choosing the right quick change tool post to sizing the tool holders to choosing the right inserted carbide tool holders and inserts for your lathe and your level of experience. Quite frankly, the book is aimed squarely at guys exactly like you and is the closest you will ever get to having a machining mentor in hard copy. David is also one of our forum members and if you ask a question of him he will answer you.
With that said, inserts are not a panacea. HSS is still a viable choice and this is especially true for smaller lathes like yours. I happen to own an 11" lathe with a 2HP motor and prefer HSS over carbide 90+% of the time. This might be because I sorta know how to grind a tool so I may be a bit biased but regardless, HSS will also work well for you.
A lot (maybe most) of hobby guys prefer inserted carbide tooling and that's fine. The reality is that carbide is the right choice some of the time for some of the materials we turn but it is not the right choice all of the time. The same is true of HSS. The hobby guy who knows how to use inserts AND can grind and use HSS is able to use the right tool for the job at hand. Ultimately, that is sort of where you want to be.
My best advice: first, buy David's book. It is a must-read for all hobby machinists. Second, return the pre-ground HSS set you bought and contact
@Z2V or
@ttabbal and ask them to grind some tools for you. Either of them can grind very good HSS tools that will last you a decade or more if maintained and their tools will work better than any pre-ground HSS you can buy. I am sure of this; I've seen their work. Their prices will be more than fair, I assure you.
Once you have chosen some tooling based on David's recommendation and also have some decent HSS tooling from either of the guys I listed, do some comparison cutting on your lathe and come to your own conclusions. If you would, report on your findings; it will help a lot of new guys that are following behind you.