Open_Source_Enjoyer apologies for the confusion. The DNS parental controls are schedule based (meaning you can block them during certain hours of certain days of the week) or you can block a domain completely at all times.
Leechblock, which is my preferred browser extension for this stuff, is very customizable, supporting both times, schedules, and other features. It also supports whitelisting and blacklisting of subdomains, as well as wildcards, so you could, for example, block one part of a website and not the whole thing or block everything from a website except for a single subdomain. Using reddit as an example, you can use this to block specific subreddits or you could block only the front page by blocking reddit.com and whitelisting all of the reddit subdomains using wildcards so that the rest of the site remains functional.
Leechblock also has additional features to block access to pages that would allow you to bypass your currently active blocks such as restricting access to leechblock settings as well as your browser's extensions/add-ons menu, effectively making it so you'd have to nuke the browser completely to bypass it, which you're hopefully not desperate enough to do...
On chromium browsers like Vanadium and Brave, you can't install extensions, but you can set a custom DNS profile for each browser. You can control the DNS at the system level in Settings -> Network & Internet -> Private DNS. Every app inherits that DNS config unless the app itself gives you the choice of its own DNS such as chromium browsers.
Chromium browsers are more secure and recommended on here. So my suggestion was to use DNS with parental controlds for supported schedule based sites. If you've never used custom DNS, I recommend NextDNS since I know it works well and then you can explore other options in the future if you wish (such as self-hosted Pi-hole). Go to the nextdns website, create an account, and start creating custom profiles. There are Youtube guides if you get stuck.
The common distraction culprits are typically available (depending on your custom DNS provider) like youtube, reddit, social media, games, streaming, etc. For unsupported parental control sites, block the domain completely in these browsers and only open those in a Firefox based browser that supports extensions like Leechblock where you have very strict, customized controls.
As mentioned in my previous post, some mobile browsers like Brave and Firefox based browsers with ublock origin extension installed support content blocking as well. You can use these to both block domains as well as create cosmetic blocks that target HTML elements. Both Brave Shields and uBlock origin support blocking elements. Using reddit as an example, I use it to block the reddit icon on the top left of the page that when clicked brings you back to Reddit front page and other unnecessary fluff. You can also use other people's blocklists as well. Brave actually has built-in, optional, blocklists for distracting elements of Youtube.
(Do note that enabling additional filter lists can make your browser's fingerprint more unique and also be mindful of the additional trust you're placing in these filter lists if they come from third-parties).
Two more things that are less techy and more of a lifestyle thing. If your problem is night time distraction...don't bring your phone to bed. Get an old fashion alarm clock and leave your phone in another room entirely. Avoiding blue light in bed is also better for promoting better quality sleep.
Second, you have to be realistic and gain self-control. The point of these blocking filters isn't to fight someone who doesn't want to change. It's to put a leash on compulsive addictive behavior to help train you. The goal eventually is to make it so you don't need these blocks in the future. But if you're in the mindset of trying to find ways to bypass these blocks from the beginning, it's not going to work and I don't think any tech solution will ultimately work. The change has to come from within.
The best analogy I can make is to a drug addiction. Detox, or in our case, content blocking, is just the first step to break the compulsive addiction. It's on you to take the detox seriously and to not turn back to your distractions afterwards. Explore your own mind to figure out what needs to change.