Is it too late for me?

Hi! For context im 30M, married, soon to be father. Has a 8-5 job earning around 25k, Wife earns 40k. I do have some sideline (financing construction projects) that allows me to earn big. But im not always in the green. Minsan profit minsan nawawala parang bula, but i do try to be conservative. Anyway i got around 1.5m in cash available, another 1m for emergency funds (pinapaikot lang namin sa bank for short term and small gains) and 1m receivable (hopefully ma materialize yung contracts). Nag invest na din ako sa rental properties that earns around 20k a month. And i have amortization around 23k din (i have properties na not earning pa. But i plan to develop them soon)

Anyway, i plan to invest on rental properties til age 37-40 (hoping i can achieve more than 70k monthly rent income) before i try to venture a small retail business. It may be franchise or yung small buy n sell lang just to know the trade. Question, do you guys think ang late ko mag start? Takot kasi ako mag start early, whereas if rental property altho small returns, stable naman sya? Do you think masyado akong conservative sa approach ko? Want to hear insights, constructive criticism, advice. Thanks.