This comment above was really helpful... I was going into it with the mindset of being perfect right away instead of building up to it. This morning I did 30 minutes on the elliptical machine at a setting that I thought was too low... but eventually my heart rate got up to the 135-140 mark I was aiming for... so I'll let myself take a couple of weeks to get up to an hour at 145. Thank you!
This comment above was really helpful... I was going into it with the mindset of being perfect right away instead of building up to it. This morning I did 30 minutes on the elliptical machine at a setting that I thought was too low... but eventually my heart rate got up to the 135-140 mark I was aiming for... so I'll let myself take a couple of weeks to get up to an hour at 145. Thank you!