diff --git a/Socialmetrica.package/NitterUser.class/instance/newestTweet.st b/Socialmetrica.package/NitterUser.class/instance/newestTweet.st
index c2bda05..ed6ee8a 100644
--- a/Socialmetrica.package/NitterUser.class/instance/newestTweet.st
+++ b/Socialmetrica.package/NitterUser.class/instance/newestTweet.st
@@ -1,4 +1,4 @@
 accessing
 newestTweet
 
-	^ self messages newestOf: self userName
\ No newline at end of file
+	^ (self tweets select: [ :tweet | tweet created = ((self tweets collect: [ :each | each created ]) asSortedCollection last)]) first.
\ No newline at end of file
diff --git a/Socialmetrica.package/NitterUser.class/instance/oldestTweet.st b/Socialmetrica.package/NitterUser.class/instance/oldestTweet.st
index cfc926b..c0f793d 100644
--- a/Socialmetrica.package/NitterUser.class/instance/oldestTweet.st
+++ b/Socialmetrica.package/NitterUser.class/instance/oldestTweet.st
@@ -1,4 +1,4 @@
 accessing
 oldestTweet
 
-	^ self messages oldestOf: self userName
\ No newline at end of file
+	^ (self tweets select: [ :tweet | tweet created = ((self tweets collect: [ :each | each created ]) asSortedCollection first)]) first.
\ No newline at end of file
diff --git a/Socialmetrica.package/NitterUser.class/instance/tweets.st b/Socialmetrica.package/NitterUser.class/instance/tweets.st
index 103512b..d66d2b0 100644
--- a/Socialmetrica.package/NitterUser.class/instance/tweets.st
+++ b/Socialmetrica.package/NitterUser.class/instance/tweets.st
@@ -13,8 +13,15 @@ tweets
 			subcollection := self messages 
 				select: [ :each | (each authorId = '1502504562984374276') or: [ each authorId = self id ] ]
 		 ].
-	(self userName ~= 'FranciaMarquezM' and: [ self userName ~= 'sandralajas' ])	 
-		 ifTrue: [ subcollection := self messages select: [ :each | each authorId = self id ] ].
+	self userName = 'IBetancourtCol'
+		ifTrue: [
+			subcollection := self messages 
+				select: [ :each | (each authorId = '1517487571135344643') or: [ each authorId = self id ] ]
+		 ].
+	(self userName ~= 'FranciaMarquezM' and: [ self userName ~= 'sandralajas' ])
+		ifTrue: [ self userName ~= 'IBetancourtCol' ifTrue:
+			[ subcollection := self messages select: [ :each | each authorId = self id ]]
+			].
 	^ TweetsCollection new
 		messages: subcollection;
 		yourself
\ No newline at end of file
diff --git a/Socialmetrica.package/TweetsCollection.class/instance/newestOf..st b/Socialmetrica.package/TweetsCollection.class/instance/newestOf..st
index 560d74d..e070077 100644
--- a/Socialmetrica.package/TweetsCollection.class/instance/newestOf..st
+++ b/Socialmetrica.package/TweetsCollection.class/instance/newestOf..st
@@ -5,5 +5,6 @@ newestOf: userName
 	user := (TwitterUser storedInstances select: [ :each | each userName = userName ]) first.
 	self messages ifNil: [ ^ nil ].
 	self messages ifEmpty: [ ^ nil ].
-	^ ((user messages: self; yourself; tweets)
+	user messages: self.
+	^ ((user tweets)
 		select: [ :tweet | tweet created = ((self collect: [ :each | each created ]) asSortedCollection last)]) first.
\ No newline at end of file