I was diagnosed with ET at 37 with platelets at 890. I started on aspirin only and was monitored every 3 months. I never had any symptoms. My hematologist told me he would put me on chemo if my platelets got to a million. That never happened and I am now 67. I was very afraid initially. But I adjusted and over time my platelets stabilized in the 500s. Very recently I learned I am JAK2 positive so I started on Pegasus 2 weeks ago. So far no side effects. So just keep enjoying your family and try not to dwell on this. Who knows what will happen to any of us!