u/garammararam

so im learning soldering. i have 2 basic good soldering irons. i have problem with placing that solder onto a joint - solder sticks on my tip or randomly anywhere but not the joint. i do use flux, but it burns fast and intense, i try to apply solder but it doesnt even melt. also with tinning my tip, i do it, but mostly i end up with a completely messy black and blue at the back tip that barely melts solder. someone please help i already completely burned my first perf board and im doing right now a complex project, dont wanna destroy any sensor again.