Sorry to butt in, but you mentioned 'blue paper', OP - but that would usually be for Irlens, not Dyslexia. (Irlens is twice as common as Dyslexia, but hugely under-diagnosed and misunderstood - you can have one without the other, but it's not unusual to have both)
My DC has Dyslexia and Irlens. The first not officially diagnosed until they were 12, the second until a year after that.
They had exam provision of extra time and coloured paper for their GCSEs (it's really important, when you get to that stage, that your DD has exam provision for her needs - it lasts for 2 years, and is usually done at the beginning of Year 10 for GCSEs, and then again at the beginning of Year 12 for A Levels.)
My DC went on to do 3 really 'writing-heavy' A Levels, went on to gain a 1st class degree (again, had the same exam provision as had been given at school - unis are really on the ball with things like this) and has now got a 1st class Masters, and is half way through a PhD. Again, in a really 'writing-heavy' discipline.
Dyxlexia is a bit of a spectrum, OP - some are far more affected than others - but there is help there. It can also be genetic (we have it on both sides of the family) and the Irlens is an added thing on the top, but not insurmountable.
Your DD will do well, OP! Please don't doubt that. With the right provision and support in place, she will achieve her potential.
Good luck!