Portal 2 challenge mode

This is NOT my official Portal 2 playthrough. When I do that, I want to livestream it. Why haven't I done that yet? There are some sound mods I want to do that with, but I can't figure out how to successfully install the mods. Did something break back there?
Anyway, in this video, I break a few of my own records, and in other puzzles I don't even get close to how good I know I could be. And in a few, I see how I did in this video and I know I could do even better. I saw opportunities to do perhaps one less portal, or skip a few seconds.
But seriously, if someone could help me figure out how to successfully mod Portal 2, I would be very grateful. Anyone, please! I want my one and only livestream of Portal 2 to count!
0:00 Beginning
0:23 ACT I, Area 1 - Chapter 1: The Courtesy Call - Portal Gun (test chamber 2)
1:18 Smooth Jazz (chambers 3 & 4)
2:18 Cube Momentum (chamber 5)
3:07 Future Starter (chamber 6)
4:16 Area 2 - Incinerator (chamber 19)
5:50 Chapter 2: The Cold Boot - Laser Stairs (chamber 2)
6:33 Dual Lasers (chamber 3)
7:26 Laser Over Goo (chamber 4)
8:24 Trust Fling (chamber 6, "15 Acres of Broken Glass")
9:33 Pit Flings (chamber 7, "Love as a Construct")
11:00 Fizzler Intro (chamber 8)
11:49 Chapter 3: The Return - Ceiling Catapult (chamber 9)
13:48 Ricochet (chamber 10, "I Saw a Deer Today")
15:22 Bridge Intro (chamber 11, "Hard Sunshine")
16:31 Bridge the Gap (chamber 12)
18:29 Turret Intro (chamber 13, "I'm Different")
19:30 Laser Relays (chamber 14, "Adrenal Vapor")
20:20 Turret Blocker (chamber 15)
21:12 Laser vs. Turret (chamber 16)
22:09 Pull the Rug (chamber 17)
22:52 Chapter 4: The Surprise - Column Blocker (chamber 18, "I Made It All Up")
24:34 Laser Chaining (chamber 19, "Comedy = Tragedy + Time")
26:51 Triple Laser (chamber 20, "Triple Laser Phase")
27:31 "Who turned off the lights?"
29:00 Jail Break (chamber 21, "An Accent Beyond")
30:20 Escape (chamber '22')
31:36 A part I forgot to edit out where the leaderboard wouldn't load.
33:58 Chapter 5: The Escape - Turret Factory
36:14 Turret Sabotage
39:48 Neurotoxin Sabotage
41:37 ACT II, Area 3 - Chapter 6: The Fall - Underground/The Pit ("Vitrification Order")
44:19 Cave Johnson/Beyond the Seal
47:00 Repulsion Intro (Enrichment Sphere 1)
49:00 Bomb Flings (Enrichment Sphere 2)
50:21 Crazy Box (Enrichment Sphere 3)
52:22 PotatOS/Reconciliation
54:32 Chapter 7: The Reunion - Propulsion Intro (Enrichment Sphere 4)
56:42 Propulsion Flings (Enrichment Sphere 5)
58:29 Conversion Intro (Enrichment Sphere 6)
1:02:47 Three Gels/Ascension
1:05:37 blooper I deliberately left in because it was funny
1:06:10 ACT III, Area 4 - Chapter 8: The Itch - Funnel Intro (chamber 1)
1:07:04 Ceiling Button (chamber 2)
1:08:08 Wall Button (chamber 3)
1:09:48 Polarity (chamber 4)
1:10:56 Funnel Catch (chamber 5, "Machiavellian Bach")
1:11:53 Stop the Box (chamber 6)
1:13:10 Laser Catapult (chamber 11)
1:15:08 Laser Platform (chamber 12)
1:16:50 Propulsion Catch (chamber 15)
1:19:13 Repulsion Polarity (chamber 16)
1:20:58 Chapter 9: The Part Where He Kills You - Finale 2/Holmes vs. Moriarty (chamber 75)
1:23:40 Finale 3/Morton's Fork
1:25:59 Finale 4 (final boss)
1:30:47 "Super 8" interactive teaser

[@renamon5658]

Space

[@dogman15]

Unfortunately, we didn't go to space in this video. That will have to wait until I can get the mods I want to work in a full playthrough.