Yes, not a good idea, you will lose everything. Maybe I am wrong, but I have the impression that there is confusion here. You cannot choose to display actions on your profile and not on others. Some actions are just hidden automatically like for example "Start conversation", "Messages" etc ... anything that you will not do with yourself is automatically hidden, you cannot choose that.
The only thing you can define is what is visible for each member level. There are two ways to do this.
The first: By prohibiting actions via the "Permissions" module. If you deactivate a function for the "standard" level for example, "Vote" then all the buttons relating to this function will disappear including on ALL the profiles belonging to the "Standard" level.
In this case it's not a question of seeing or not, it's more of a question ... of permissions.
The second: Via the "Navigations" module. There, it is really a question of seeing or not, but always only for each level of member.
I suggest that you preselect the "People" module so as to limit the number of menus that give you a problem.
Next to each item, you have the number of fields they contain, they should help you better understand the menu you want to adjust.
You are talking about the "More ...." menu, select this one. From there, either, you deactivate a section for EVERYONE, or you regulate it more finely by choosing the level or the levels of members who will be able to see it.

I hope I could help you, normally you should be able to put things in order, but forget about this idea of my profile and that of others.