you need to plan to use something other than XP come April as continuing to use it is not a sensible option.
What he said, except I'd put it in much stronger terms.
People who use XP after it goes EOL are fools.
I don't care if you're running anti-virus or whatever, it won't help you one iota if the underlying OS is not patched up. Anti-virus and other third party security software all use underlying OS APIs.... if those APIs are insecure, then so is your security software.
As for the people here implying Microsoft don't care, those people have evidently never been involved in software development. You can't realistically continue to support all historical editions of software, you have to draw a line somewhere.
Get yourselves upgraded to a newer version of Windows or migrate to Linux or Mac.
Remaining on XP is not an option. There is
ZERO justification for any private individual to remain on XP, and there is
ZERO justification for any business other than large corporates with legacy systems (and a healthy sized IT department) to remain on XP.
The time has come, Microsoft gave you more than enough notice. Deal with it.