Greetings @Jo_Fretwell and welcome!
Although your topic heading gave it away, when I read that you are using urine sticks, I was still slightly surprised to see that your concern was about ketones being too high - as opposed to too low.
As noted by others, most folks using the urine sticks put them aside shortly after getting started because they experience a decline in measured urine ketones (specifically AcAc - acetoacetate) - which is not indicative of a failure to enter into ketosis … at some point it begins to mark your success! In large part because, as also noted above, they measure what your body is NOT using, as opposed to what it IS. So at some point you stop producing excess AcAc that isn’t being utilized as an energy source.
Blood ketone measurements (of beta-hydroxybutyrate), on the other hand, are more reliable. They’re also more costly and entail pricking your finger, as diabetics do to check glucose.
Personally, I enjoy gathering data - enough that I don’t mind drawing a drop or two of blood for glucose and ketone testing. But if you just have faith in your ability to follow the ketone diet (<20g carb/day; prudent protein for your lean body weight; healthy fat sources to meet your true hunger levels), then the testing stuff is not really necessary. FWIW, my own blood ketones are surprisingly high by any normal standard - but having carefully researched things further, it’s become a source of keto comfort rather than concern 
Sure, testing can be highly informative - but your body’s metabolism doesn’t particularly care what the pee stick color is … and you will still achieve all the heath benefits whether you test or not as long as you’re carefully following the restricted carb protocol.
So (assuming you are not a Type 1 diabetic) I would not worry at all about what appears to be a strong start to your keto journey. Based on those lofty urine stick results, it sounds like you’re doing GREAT!
Do keep us posted.