Intraday Strategies

I have built several trading algorithms over the past few years. They are not overly complex, but they have consistently produced returns in line with or slightly above the market, with Sharpe ratios between 1.6 and 1.9. I am now interested in transitioning to intraday strategies because I believe they may allow me to deploy capital more efficiently and potentially capture higher returns with smaller drawdowns. My experience is strongest in trend continuation, and I have also explored mean reversion and correlated asset divergence approaches. I am not looking for your exact setup, but rather guidance on a broader topic such as trend continuation or another structural concept, along with your experience working within that area. I would appreciate insight into which intraday themes you have found more approachable and the main challenges you encountered while developing and trading them. I should also mention that I do not yet have an advanced mathematics background. I am currently in high school with coursework in calculus, statistics, computer science, and physics.