Please for the love of smash, never do that many stocks again, do 4 or lower..I have dial up. I only watched the first one.
First, good job for only playing a month! now for the bad...
Against samus, if she bomb jumps very close to the edge on her recovery, give her a b-air..don't just stand there.
You can wavedash as I seen once, use it, you mostly ran as your approach, Wavedash!! Less dash attacks, wavedashing allows movement and attacking!
I can't say it enough..wavedash your attacks! it makes your range godly and allows great combos.
Be sure to l-cancel and use more air attacks, you let marth's airgame mostly go un-used.
Less over b attacks, use it as a surprise or something odd to throw at them..not over and over.
You can swat her missles down you know, basicly any attack can destroy an oncoming missle.
Grab more, marth's grabgame is too good not to be used.
You probably noticed that when your foe gets high damage, you can no longer combo them, marth really needs to kill at lower damages to keep his game up, combo f-airs into f-smashes or ken combo him.
The smash lacked the ability to sweetspot, you should have ruled him for that due to marth's f-smash.
When you are edgehogging, you can attack directly from that you realize, so start ledgehopping d-airs to spike people recovering before you.
Learn to mindgame..don't just attack them swinging like you are Conan, learn to trick your foe.
Samus
Crouch Cancel more!!!!!!!! Your best tool with her. You can counterattack nearly everything with the d-tilt.
In air, when being combo-ed, send out that sex kick, it will get them off of you.
Learn to missle cancel and l-cancel more...use wavedashing as well!
Mindgame your approaches more..especially involving the charge beam
Be careful of your bombjumping..an experienced person will take advantage of you while you bombjump too closer to stage.
Hope the information helps.