terrified of preeclampsia...

My blood pressure has been high for like 2 months now, I'm on Labetalol for it but it still seems high. I did a third 24 hr urine test and it's 301, the number needed to be under 300. I think I technically have preeclampsia with a urine protein that high. I'm only 31 weeks 5 days...Has anyone else been diagnosed with preeclampsia at this stage of pregnancy? If so what did your dr do for it...? I have an appt this afternoon but I need words of encouragement cuz I'm terrified 😳