Hello. I am looking for advice how to invest a rather big lump

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Hello. I am looking for advice how to invest a rather big lump sum of money. I have already started purchasing.

My mother has never had an investment account, she knows nothing about investing. Everything she has ever earned she saved in a bank account. She is nearing retirement age now and has about 120k that she asked me to invest on her behalf. Obviously 120k is not anywhere close to the million+ nest egg one is supposed to have for retirement, but she did her best.

I have been thinking of dollar cost averaging into a sort of lazy portfolio over the course of the next few months.

A while ago I purchased 5k worth of ETH when it was around 150. I also hand picked and purchased 10k worth of high dividend large cap US stocks (IBM, GE, XOM, MO). I also purchased 5k worth of an international index fund (SCHF).

She has about 100k left to invest. How should I go about doing that? I was thinking to put at least 50k into a bond fund to lower portfolio volatility because she is so close to retirement age, and split the remaining 50k evenly between a portfolio of international and US funds.

Any thoughts on how to allocate the remaining 100k?