Stop fsmashing.... At least until you get better... And actually, NEVER do it when your opponent is at a low percent... Doing it at low percents is just.... High risk, low reward... >_>
1st match: Yes, you're right. You do need work on your spacing... Also, at times it seemed like you were just throwing out a lot of random attacks and hoping one of them would hit...
You really could have used better attacks in certain situations in this video... Like at :44, an fair would've been better. Or 1:47, a walkoff fair would've been better... I dunno why you tried to Aether spike, you moved too far away from the ledge to grab it, and you missed him anyway... ._. And at 2:34, a bunch of other moves would've been better.
That Wolf has bad reaction times at certain points... o_O;; He could've done a lot better at punishing you at times too. Anyway, you got lucky this match. You got a lucky fsmash on him, he tripped off the stage into an Aetherspike, and he killed himself at the end. You probably shouldn't have won that match.
2nd match: Your first death. Don't use Quickdraw to recover like that. -_- Otherwise... This match was A LOT better... There were still quite a few times where you could've used better moves though. There were even a couple times where you missed fsmash opportunities... D:
3rd match: You like to use dair as a shield whenever you get hit up... You may want to try using Eruption instead, it can be more rewarding... Also, you may want to try doing something else from a Jab cancel besides grabbing. Jab to utilt or jab to jab works fairly well. One more thing... You're trying to dair spike wrong.... If they're coming at you horizontally, you usually have better options... Like fair or bair, mostly. Plus you don't have to waste your second jump.
Also, no offense to him, but that MK wass pretty bad.
4th match: Wtf was with the onstage dtilts? ._. 1:20.... Did you move toward the stage...? It looks like you just kinda let yourself fall for a bit, then move toward it... <_< Anyway, you could've gone with less ftilts in this match... You used it a bunch.. ._.;; And lol, nice ending.
5th match: ....Why did you Aether away from the stage? -_-;; But yeah... Not much to say about this one, other than what I've already been saying.
6th match: Again, I don't really have anything to say about this one... But man... This guy's Ice Climbers are worse than his MK... >_> Can't chaingrab properly, and it doesn't look like he has a feel for the Ice Climbers... Like it's his first time playing them or something... x_X He shoulda just stuck to Wolf....
Final Statements: You're better than the average Ike. And when I say "average Ike", I mean those random Ike n00bs on "With Anyone" WiFi. You still have a bunch of room for improvement though. My biggest suggestion for you to get better is to play against adverse and even better people. It felt like you didn't know how to react to some certain things characters did... Get more individual matchup experience.
Well... There ya go.
