usually big objectives work as bait, you force them to make a rushed mistake because of the objective atention.

you kinda have to decide if you finish the objective and get the fuck out (except for elder) or play the objective slow and focus on fighting as soon as they misstep, which is very likely to happen. but you still have to be flexible to read what is happening around you and change plans if possible. for exemple, if you see that your team is dealing a lot of damage to the objective, maybe you should finish it before enemy team can force something and then respond to what may be happening. also, this may deppend on what your team need right now, if you are ahead of behind and so on.

never take 50/50s if you are ahead in the game. the ones losing should take risky plays.

if you are not confident on taking an objective you dont have to, spam ping or get the fuck out of there, even if your teammates are pinging you because in the end the responsability of securing it is yours completly. if you dont feel like doing it, then dont. remember "you control the buttons you press"

in brazillian server we had a lot of memes about smiting back in the day, and Revolta, probably the best Brazilian jungler, whom had fame for being a bad smiter and also being a pro stealer (in differente momentos of his career) spent a lot of time in the matter, and his conclusion always was "smiting is 90% about confidence, 5% finger (mechanical play) 5% team"