There are multiple Bitcoin flights to board, It's not too late to invest or explore Bitcoin. The upcoming halving will bring more exciting opportunities so you can still fall in. To start  make research from reliable and reputable platforms set your budgets and consider long term goals for investing in bitcoin. Bitcoin journey so far is never too late depend on how much you intend to invest,  period of time duration and your profit targets but bitcoin upward trends and it's potentials of hitting $100k to $120k by this year ending will be beneficial both short term gains and long term investments. Bitcoin versatility make it a nice choice for various goals.