Hopefully there is a club/team in your area that you can join and start learning 'racing skills'...they are far different from 'tri skills'...handling, positioning, control, etc.
How far you can go depends on a lot of variables ie, how old are you? Do you live in a 'racing area'? How willing are you to put in the time, energy and effort to achieve higher levels?
In general it starts with training and practice...especially if you are interested in crit racing...it is a very different element of racing and requires a lot of different skills rather than 'just' strength.
You will need a USAC racing license and will likely start as a category five racer...you upgrade the beginning levels based on how many races you participate in so you can generally go from cat 5 to cat 4 to maybe cat 3 in one season depending on how many races you do and how well you place.
Expect to get your head handed to you in the first few races...crits start at 'full gas' for the first few laps in order to 'burn off the dead wood' making it safer for the remaining. The USAC official may pull those 'dead wood' riders off the course as a matter of safety so don't get angry when it happens to you...it happens to everyone when starting and it is a learning opportunity.
Crit racing demands repeated full gas efforts generally lasting around 30 seconds so blocks of 30 seconds on/off intervals at full gas is a very useful training regimen.
There is so much more...the general rule of thumb is it takes 3-5 years for a beginner to become a competent racer.

If you expect to make money as a bike racer in the states...keep you day job. Racing isn't big in the states and the pro teams riders aren't getting big money to race...that happens in Europe.

What are your hopes, expectations, etc.? Where do you live? Buffalo NY? that is a good area for racing.