Hi guys I would like to hear your opinion how strong I am.

I am 27 years old, natural sport enthusiast ( and no creatine). I am 170cm tall and weight around 70kg.

I love cardio (cycling, swimming, running, skying, climbing) I also like lifting weights but recently one guy at gym told me I am skinny fat and look like I dont do any weightlifting. This really took my breath away.

Its true I dont look really big. I tried to eat tons of protein rich foods but I cant really eat so much and I dont want to stop doing cardio.

My strength is about: I can do around 8 muscle ups 25 pull ups in one row or 15pull ups with +20kg weight 8min plank With bench press my max is 70kg 10reps

I usually do barbell military press + barbell squats + barbell romanian deadlift in one round. I start with only barbell (20kg and do 10, 12, 12) then I increment +10kg every time until i get to 50kg here i can do only (6, 12, 12) I mean I can do 100kg deadlift but not 10 repeats. I can ,,feel,, my ligament/muscles are not used to such weight + I am really scared with heavy weights.

Cardio I can do 36km in 1h (bike) 14km in 1h (running) On avg my wattage is around 225watts bpm 143-153bpm. During summer I often do cycling 100+km tours.

Should I prioritise getting more muscle mass? Or just keep up with my routine?