Am I in good shape long-term as a Canadian investor? Looking for feedback on my portfolio

Hey everyone, I’m a 35-year-old Canadian investor looking for some feedback on whether I’m set up well for the long term. I work in construction and things are extremely slow right now, so I’m not contributing much at the moment — but once work picks up again, I plan to resume regular investing and stick to a long-term buy-and-hold strategy. Here’s my current portfolio breakdown: VTI (US Total Market ETF) — ~38% XUS (CAD S&P 500 ETF) — ~36% SPYM (Dividend ETF) — ~21% LAC (Lithium stock – speculative) — ~5% My goal is long-term growth with some stability. I’m not trying to trade — just steady investing over time. Does this look reasonably diversified for my age and goals? Would you simplify it or rebalance anything? Appreciate any advice or perspective.