Did Tabata this morning, for the first time. couldn't last past the 3rd set. simple collapsed on the floor LOL.

I was doing Thrusters, 5kg dumbell per arm. Is it too heavy?

Should i be trying it with an even lighter weight?

Or should i continue using 5kg dumbells, but maintain doing it until collapse, rather than try to strive for full 8 sets?

All inputs welcomed

I wanna lose my last bits of bodyfat and get some muscles