is 1420 a good rating because thats what i am
No. It is neither good nor bad.
It only applies to a particular time control group on a particular site.
Without knowing the time control group or the site, people can have no basis for comparisons.
Ratings used to be assigned only for over the board play. Now most people have multiple ratings on multiple sites.
I see 13 ratings from this site. And you posted a USCF rating too (that didn't fit).
Which one were you asking about? (And how was anyone supposed to know?)
His USCF rating is 1420, probably not updated on his profile.
Top 20% of players nationally, top 8% among juniors nationally, and top 10% in Texas... why don't you answer your own question? 
1400 on chess.com is...well, you know how to play chess, but you’re still...a patzer. 1500 is titled patzer, and 1600+ I’d say is good.
This is different for OTB though.
it's a good rating to someone who is below 1420
It's hard to tell with blitz, especially online blitz. If it were rapid then things change drastically, but there are too many chances of finding bad matches with online blitz. The reason for that being the nature of online blitz itself... to put it simply and short, the level of competition drops and fluctuates with online blitz.
is 1420 a good rating because thats what i am
1400 is an excellent rating for your age.
But I guess I'd rather not comment much on blitz beyond 3|0, because after all... I only play 3|0 blitz. At first I used it for balance training, warming up, or vacationing, but lately I've taken to seeing it much differently...
More on the matter of fluctuation in online blitz... not too long ago I read an article, by a master I believe, who plays blitz from time to time while taking a walk or riding a train.
In other words, you have a 1420 amateur league rating. Which is very impressive, I hope to obtain that level someday soon.
Amateur games spawn amateur ratings, online or offline, that is because they lack competitive consistency. It doesn't have to be a big federation that observes true ratings. Sometimes all it takes is a little club, online or offline, that views chess in professional regards, to instill some consistency...
By the standards of international players, we're all patzers... me as well as you.
1420 is my uscf rating
Congratulations, that's a good professional rating. I'm W, and I have an amateur rating of about 1420. Though some say I'm a little underrated.
is 1613 a good rating because thats what i am