SureAI

so im doing th emain quest now well for a while already
ive done some quests but not all and havent explored the whole world
my question is this: when i finish the main quest, c an is till explore and do the other quests?
or will the world change, and its better to start over from previous savegame, where i didnt start the main quest yet?
no spoilers please!!!! thank you

thanks read please:

[+]

but how come this woman went to warn me, some sheep quest in a village or so
before i started the main quest.. she came to me and said perhaps do my quest first or you might never do it
and also this warning box, if you start to do the main quest when you talk with her you should do the rest first
i thought i was going to loose some other quests while doing th emain quest
i dont wanna loose any
so i guess i wont loose any at all? otherwise i will really start over
just that this main quest has drawn me in

The quest about Andrusch's sheep cannot be done after you have been to Arktwend.
The next quest, about the missing girl in Giliad, gives a smaller reward if you do it too late.