Hey all,
Been investing in crypto for the last few months as well as trying to learn more about it. Initially downloaded Coinbase and deposited $1000 (50% - ETH, 35% BTC and 15% LTC). Since the initial investment I've been topping up each crypto depending on the market conditions (usually between $25 to $150).
Just wanted a little advice on whether it's better to carry on with this strategy and concentrating on these 3 cryptos for long term profit (1-5 years) or would it be advisable to increase the number of alts I have in my portfolio. Was looking at DASH, Ripple, Cardano, Monero, Stellar, NEO, Siacoin and OmiseGO.
Any advise is welcome

IMO, your strategy is good, BTC, ETH and LTC are the evergreen coins to hold for the long term. However, I have one concern about you toping up less than $200 per transaction in coinbase. As far as I know of, the transaction fees charged by coinbase is higher for transaction lower than $200. You may want to check it out.
As for diversifying your portfolio to the other altcoins, the coins you have chosen are good. My favourite among them are Monero, Neo and Omg.