Should I play Blitz?

Not rely on r you have enough intuition it typically doesn't matter if your worried about not enough time 5+3 is perfect

Many beginners have an issue of not using rapid time correctly either playing like it's blitz chess (if so just play blitz you'd actually improve ) or if your thinking too long

You need time management practice anyway which bullet is insanely useful for it

Your right it csn have the opposite effect if your not careful but we long as you balance it out y doesn't matter at all besides why do you need to think 2 minutes a move anyway most beginners don't typically do that and from what I watched when they do they tend to blunder

Blitz chess can actually be insanely useful for time managment and endgames. It can help with positional play but rapid tends to be way better for that blitz is actually a very useful skill in rapid though.

You don't learn time management from playing long games and players tend to choke under time pressure and learning how to deal with time pressure is really helpful for long games.

And plenty of people improve with blitz and bullet but plenty don't it really depends on the person just writing it off for all beginners is dumb. but I do tend to agree that at least trying rapid first will help thifhh I actually see 500s play rapid like blitz sometimes and if your doing that just play blitz ... Your using the same amount of time anyway .

Though if your begginer and improving with rapid at a decent pace I would stick to rapid if your stuck swiching time controls can help or studying or reading books or analyzing games can help besides he's almost over 1000 anyway it's kinda at the area where you start being better at multiple time controls anyway

I started playing blitz after about six or seven months of playing rapid (my rating was around 700), and from my perspective, it does help you find moves faster. The time pressure forces you to make a decision, and mostly you're playing on instinct. The trick lies in making sure your instinct is always right, and that's where normal tactics and endgame studying comes in handy.

Also, playing with less time on the clock will help you appreciate the extra time when you go back to rapid. Usually your average thinking time in a rapid game (again, from my personal experience, might be different for other people) is ~20 seconds, whereas you can only get away with a couple 20-second moves in blitz.

In general, blitz is for improving your decision-making process and helping you pick better moves faster. In slower time controls, especially tournament and OTB games, you'll definitely want to still slow down and think of multiple candidate moves before making a final decision, but if your very first idea is a solid move, you'll usually be okay. Obviously take my advice with a grain of salt, I'm not exceptionally rated (900 rapid, 700 blitz, 450 bullet), but I do suggest playing blitz at least every once in a while to loosen up a bit.

I'm just impressed with the fact you're over 1000 and just started

Playing blitz tends to slow the development of beginning chessplayers. Instead of playing blitz, spend the time on books that explain the thinking of chess masters. You will improve much more quickly this way.