ok I have a question too, it's about the "c" when do I know it's pronounced like "ch" and when do I know it's pronounced like a "k" or "c" like in english? are there certain letters before or after it that control its pronunciation? or should I just know the exact words?
and I know this is my first time to help anyone with Italiano (cuz I'm the one who needs help all the time and still do

) but I can tell you a trick that can help with the "R", it's experimented and proven to be efficent

say "rrrrrrrrrrrrrr" funny I know but it helps you to mantain that vibrating sound with your tongue, just touch the roof of your mouth behind your teeth with the tip of your tongue as villa said and breath out of your mouth, first do it for sometime without associating the Rs with any word but then do it in the middle of words like rrrrrrado and time by time reduce the number of Rs in your words, and tell us how it goes