Good calorie burn there Dill.
Keep it regular, it gets easier.
I've included a steep incline in my route now, not long but I'm surprised how easy it is for me. A couple of months ago no way.
While I'm here does anyone else listen to music while they run?
I use it for rhythm, not listening to my favourite tunes but finding tunes with good beat and rhythm for running.
Off the top of my head JJ cales 'They call me he breeze' is excellent as in 'yonders wall' by Junior wells. Both a nice 10kmh lope.
In fact I really need that, won't go without it.
I use spotify, Some of Elvis's tunes are good too.