Still having issues with this R Sound.
I can vibrate my tongue all day--like boys did with machine guns, cars and such--but I am unable to make this into words. erre. I end up trying e/ then rr (Vibrated) the e/ again.
Romántico. I try Vibrated D's then add [omántico.] What ends up happening is I sound strange. Additionally, the words sounds very forced.
On top of top of this, there is this shh sound that accompanying my vibrating tongue. It almost feels and sounds like its coming from my nostril.
Its harder when I have to do a word such as perro. Pe/ rr (vibrated) then O sound. Pe--RR--OH. I literally cannot seem to keep the vibrate within the flow of the word.
HELP! 
5 Answers
Just be patient, not at a hospital!
Don't foul up the tip of your tongue... ![]()
I have been trying for about 5 years to get a rolled r -- I still can't. I still try every day though. Maybe one day it will happen. Occasionally I say a half-way decent perro, but r's at the end of the word (such as obrar) are totally impossible. I think I have watched every video on you-tube to no avail.
The way that you can practice is like this when you say a word like perro. . Since you can roll your tongue, you can definitely say perro. When you roll your tongue (for practice) make it sound like "ro". Once you get that you will be able to say perro. Just say "pe" then do the "ro" sound with your tongue and then "o". Good Luck, T_Bladel!!!
I hope you get it, T! I, on the other hand, have never been able to do that rrrrr sound, even just in fun sound effects, let alone put it into a word. All of my Spanish r's and rr's just sound like a d.
I'll be watching this question and hopefully, one day somebody will come up with an idea to help unlock my stubborn rrrr's!!

There's no rush, so don't beat yourself up.
You've probably already gotten all the advice you need, the only thing left is to keep practicing. Start with a few words, 2-3 and work on it until you get it and move on from there.
When it comes to Spanish, slow and steady wins the race. Don't worry so much about trilling your R's, it will come. I still can't do it consistently after 10 years, but I communicate just fine with people. I'm still working on it (albeit not hard enough) and I'm slowly but surely making progress.
Hang in there and good luck!