Mountain Lion EATS-UP RAM and BATTERY!!!

Question

Since I had the BAD idea to install Mountain Lion I have had only trouble.
1) Given the fact that Safari deosn't start and hangs endlessly, unless I ALWAYS force reload the pages, and given the absence - a REAL LOSS! - of functionalities like RSS which were in Safari 5.1.7 but not in Safari 6, I had to drop it as my favorite browser after MANY YEARS, and pass to Firefox which is FLAWLESS.
2) Another MAJOR issue that I want to mention is the fact that with M.L. my free Memory at startup, with the same login items, has gone down from an average of 6.9/7 Giga to a 5 Giga or less.
Even freeing memory doesn't help.
3) The other problem is a HORRIBLE DOWNGRADE ALSO IN BATTERY LIFE which has STARTED the moment I installed M.L.
Instead of the usual 7-7 1/2 hours, I now get about 3 1/2 hours.
I have done PRAM reset and permission repairs (which, BTW, take EVEN 10 minutes!!!) but to no avail.
And on top of it, EVERYTHING is much slower than with Snow Leopard!
A MAJOR SYSTEM UPDATE IS NEEDED URGENTLY!
This system for now s*u*c*k*s feet fungi! ...And one cannot go back to the previous system!!!

Answer 1

Thank you Thomas. Some common sense, respect and politeness helps.
Unless... I have no right to be upset at a system that was put out and for which I even payed (a first in 25 years for me with Mac) and someone finds "offensive" (who is he, the system's mom or child?) some very harsh (IMHO with reasons) criticism of this system!
To begin with, it would REALLY help if, INSTEAD OF SHOOTING answers  which are NOT answers, one took the time to read the question well and to try and understand if the person who asks is a newbie or not (in my profile there is a 25 years of Mac experience), and may be NOT insisting on the creation of a new user account when a few messages above I had already written that:
"I not only created a brand new user account, I actually ever re-formatted the whole disk and re-installed the system ANEW, one week after the first install and after innumerable problems, and NOTHING CHANGED".
I consider the REPEAT of such a suggestion just disrespectful, since I had written that I had already done all that and more, and I find it also also upsetting, after one week of PURE **** with my computer, something NEVER experienced before.
In the meantime, I disabled the [for me] useless and actually annoying "Notifications" even eliminating it from the toolbar, and free RAM at startup jumped immediately UP about ONE GIGA, back to 5.2 out of 8, and, after using freemory pro (even if it really bugs me to have to do that everytime I startup!) I gain another giga, and I am back to something more normal like 6.2 out of 8.
However, no way for me to have Safari start without forced reloading (while Firefox is flawless) and I also still have the rest of the BUGS, not last of which is with Mail showing the "blocked plug-in" (after  re-installing a brand new FlashPlayer with the new system installation) and not allowing Control-F in address field, which I had done since Mail was invented.
As another person, probably another "idiot" like me who doesn't know that Mountain Lion is perfect and it is all his fault, (I quote him): "I send out 'stuff' to a distribution of people (Bcc, of course) and always take pains to remove the original sender from the list. I then used to put the cursor in the list of distributes, hit Command + A then Command + F and "find" whomever it was I needed to omit. This handy feature is now disabled. Sigh."
I really resent that some people at Apple are so much under windoz influence that they have been eliminating one by one the great characteristics that made Mac a DIFFERENT system, above all a USER FRIENDLY SYSTEM.
Now it is much less so, and on top of it you have Mac users in this forum, who probably started with a PC (which I NEVER touched) who get upset when one points out the flaws in the new creations...
Besides some politeness and empathy, he should learn some English: it is "in the same VEIN", not vain...like his remarks... ;-)