Quite a few guys at legacy carriers with a few blackmarks. It's normal.

There is a difference between a few black marks and having failed most of your checkrides before ever getting to the ATP level and type checks and such.
The OP has been given good solid information thus far - but let's not blow sunshine all over the place either. What the OP has in his history up to this point is NOT normal.

4 is going to make it near impossible to make it past the computer. I’m not saying impossible but op needs to be honest about if he’d be happy not making to the top tier. It’s not just a possibility but a probability.

The good part is failures before ATP seem a lot more forgivable. The bad part is 4 is already a lot and you really need to push for a clean record from here on out.

I know a couple pilots with several busted rides and other black marks that finally got the majors to interview them in the past few months (checkride busts + a 121 training failure or ac incident) . Both of them have CJOs at legacies and class dates canceled indefinitely because of covid. So it really remains to be seen if it will ever come to fruition for them. At some point it will get to the point again where Delta and United can't just skim the creme de la creme off the top of the app pool and they'll start looking at people aren't 'perfect' again. However, this covid recession probably set that back another 7-10 years. There's still a glut of highly qualified applicants, as people build more experience that number only gets bigger.

I also know a couple people that flowed up to AA that would have really struggled to get hired off the street.

People don’t make it to the top tier in MOST professions.
- Actor
- Singer
- Sports
- Lawyer
- Doctor
- how many other?

What is top tier anyways?
Top pay? Top quality of life?
Top benefits?

Many certainly chose pay to be the #1 driver.
I’d say it is top tier in pay but it is far from top tier in my personal career choice for numerous reasons.
what did you say a Regional CA can make? Someone recently said a LCC CA could make $300k.
can someone on here REALLY SAY that that isn’t a great paying career.
if so - you are ignorant and somehow think that everyone can make TOP WAGES?
Foolish.

That’s great! I hope you make it to your career goal. Be sure to get an Autogas STC for your 150, it saved me a ton of money over the years on my airplane.

LCC CA can make quite a bit more than $300K, or at least they could last month.

Safest career to hit it out of the park is Dr.... if you graduate from med school you're probably set. Most of the others it's a long, steep climb with many or most falling out along the way to the top.

^^^THIS^^^
The best bet would be to get those ratings/training going again and make sure you are perfect from here on out. If you have 400 hours and your multi, try to get in the SCM program at FS or CAE. You might not make it through the computer screening even at a regional, so face time at any and all job FAR’s and career expos is your best bet. And spend some $$ on resume and interview prep even for the job fairs. They have a lot of great insight on putting the best spin on check ride failures, DUI’s and other driving record issues. But you will have to show your face and present well to get a call. You probably would not get one with just submitting an application.

I mean your best and only bet is to get on somewhere with Flow if it still exists after all of this. It was built for people like you.

Even with the flow regionals they still have restrictions in place on individuals with backgrounds that mainline would not find acceptable.