Fair enough. You have a normal toddler. Keep him away from breakable things until he’s about 2.5yo/3yo as all he’ll want to do is throw them. After that, he’ll have enough language to be able to reason with him and you can start removing the baby gates from off-limits areas.
Normal to go through a throwing phase at this age. Say No firmly and remove the item. He’s a bit young to understand time out / reward charts etc, but you could try those kind of things in about 6 months.
My 2 1/2 ur old has just about come out of this type of behaviour. It is linked to communication and language and frustration. It is hard for them as it is for you, lots of attention and firm boundaries, routine and take them out for fresh air every day if you can.